Introduce gerrit-owners-parent.

This is in preparation for creating an auto assigning plugin that uses
the owners config.
diff --git a/gerrit-owners/pom.xml b/gerrit-owners/pom.xml
new file mode 100644
index 0000000..acfd9c9
--- /dev/null
+++ b/gerrit-owners/pom.xml
@@ -0,0 +1,173 @@
+<!--
+Copyright (c) 2013 VMware, Inc. All Rights Reserved.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>com.vmware.gerrit</groupId>
+    <artifactId>gerrit-owners-parent</artifactId>
+    <version>1.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>gerrit-owners</artifactId>
+  <packaging>jar</packaging>
+  <version>1.0-SNAPSHOT</version>
+  <name>gerrit-owners</name>
+
+  <properties>
+    <jacksonVersion>2.2.0</jacksonVersion>
+  </properties>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-antrun-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>prolog-to-java</id>
+            <phase>generate-sources</phase>
+            <goals>
+              <goal>run</goal>
+            </goals>
+            <configuration>
+              <target>
+                <property name="gensrc" location="${project.build.directory}/generated-sources"/>
+
+                <java classname="com.googlecode.prolog_cafe.compiler.Compiler"
+                      fork="true"
+                      failonerror="true"
+                      classpathref="maven.compile.classpath">
+                  <arg value="--show-stack-trace"/>
+                  <arg value="-O"/>
+                  <arg value="-am"/><arg value="${gensrc}/prolog-am"/>
+                  <arg value="-s" /><arg value="${gensrc}/prolog-java"/>
+                  <arg value="src/main/prolog/gerrit_owners.pl"/>
+                </java>
+              </target>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>build-helper-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>add-source</id>
+            <phase>generate-sources</phase>
+            <goals>
+              <goal>add-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>${project.build.directory}/generated-sources/prolog-java</source>
+              </sources>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-shade-plugin</artifactId>
+        <configuration>
+          <createDependencyReducedPom>false</createDependencyReducedPom>
+          <promoteTransitiveDependencies>true</promoteTransitiveDependencies>
+          <artifactSet>
+            <excludes>
+              <exclude>com.gerritforge:*</exclude>
+              <exclude>com.google.gerrit:*</exclude>
+              <exclude>org.bouncycastle:*</exclude>
+              <exclude>org.slf4j:*</exclude>
+              <exclude>com.google.guava:*</exclude>
+              <exclude>org.eclipse.jgit:*</exclude>
+              <exclude>wsdl4j:wsdl4j:*</exclude>
+            </excludes>
+          </artifactSet>
+          <transformers>
+            <transformer
+                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+              <manifestEntries>
+                <Implementation-Vendor>VMware, Inc.</Implementation-Vendor>
+                <Implementation-URL>http://github.com/vadims/gerrit-owners</Implementation-URL>
+                <Implementation-Title>${Gerrit-ApiType} ${project.artifactId}</Implementation-Title>
+                <Implementation-Version>${project.version}</Implementation-Version>
+                <Gerrit-ApiType>${Gerrit-ApiType}</Gerrit-ApiType>
+                <Gerrit-ApiVersion>${project.version}</Gerrit-ApiVersion>
+              </manifestEntries>
+            </transformer>
+          </transformers>
+        </configuration>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>shade</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+
+    </plugins>
+  </build>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.google.gerrit</groupId>
+      <artifactId>gerrit-${Gerrit-ApiType}-api</artifactId>
+      <scope>provided</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>com.google.gerrit</groupId>
+      <artifactId>gerrit-server</artifactId>
+      <scope>provided</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>com.googlecode.prolog-cafe</groupId>
+      <artifactId>PrologCafe</artifactId>
+      <version>1.3</version>
+      <scope>provided</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.gitective</groupId>
+      <artifactId>gitective-core</artifactId>
+      <version>0.9.9</version>
+    </dependency>
+
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-core</artifactId>
+      <version>${jacksonVersion}</version>
+    </dependency>
+
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+      <version>${jacksonVersion}</version>
+    </dependency>
+
+    <dependency>
+      <groupId>com.fasterxml.jackson.dataformat</groupId>
+      <artifactId>jackson-dataformat-yaml</artifactId>
+      <version>${jacksonVersion}</version>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/src/main/java/com/vmware/gerrit/owners/OwnerPredicateProvider.java b/gerrit-owners/src/main/java/com/vmware/gerrit/owners/OwnerPredicateProvider.java
similarity index 89%
rename from src/main/java/com/vmware/gerrit/owners/OwnerPredicateProvider.java
rename to gerrit-owners/src/main/java/com/vmware/gerrit/owners/OwnerPredicateProvider.java
index 1d9b722..73d5b0f 100644
--- a/src/main/java/com/vmware/gerrit/owners/OwnerPredicateProvider.java
+++ b/gerrit-owners/src/main/java/com/vmware/gerrit/owners/OwnerPredicateProvider.java
@@ -8,6 +8,9 @@
 import com.google.gerrit.extensions.annotations.Listen;
 import com.google.gerrit.rules.PredicateProvider;
 
+/**
+ * Gerrit OWNERS Prolog Predicate Provider.
+ */
 @Listen
 public class OwnerPredicateProvider implements PredicateProvider {
   @Override
diff --git a/src/main/java/com/vmware/gerrit/owners/OwnersConfig.java b/gerrit-owners/src/main/java/com/vmware/gerrit/owners/OwnersConfig.java
similarity index 100%
rename from src/main/java/com/vmware/gerrit/owners/OwnersConfig.java
rename to gerrit-owners/src/main/java/com/vmware/gerrit/owners/OwnersConfig.java
diff --git a/src/main/java/com/vmware/gerrit/owners/OwnersStoredValues.java b/gerrit-owners/src/main/java/com/vmware/gerrit/owners/OwnersStoredValues.java
similarity index 93%
rename from src/main/java/com/vmware/gerrit/owners/OwnersStoredValues.java
rename to gerrit-owners/src/main/java/com/vmware/gerrit/owners/OwnersStoredValues.java
index 28003ac..3299ed6 100644
--- a/src/main/java/com/vmware/gerrit/owners/OwnersStoredValues.java
+++ b/gerrit-owners/src/main/java/com/vmware/gerrit/owners/OwnersStoredValues.java
@@ -25,7 +25,7 @@
       PrologEnvironment env = (PrologEnvironment) engine.control;
       AccountResolver resolver = env.getInjector().getInstance(AccountResolver.class);
 
-      return new PathOwners(repository, resolver, patchList);
+      return new PathOwners(resolver, repository, patchList);
     }
   };
 
diff --git a/src/main/java/com/vmware/gerrit/owners/PathOwners.java b/gerrit-owners/src/main/java/com/vmware/gerrit/owners/PathOwners.java
similarity index 96%
rename from src/main/java/com/vmware/gerrit/owners/PathOwners.java
rename to gerrit-owners/src/main/java/com/vmware/gerrit/owners/PathOwners.java
index 83466b4..f68d16f 100644
--- a/src/main/java/com/vmware/gerrit/owners/PathOwners.java
+++ b/gerrit-owners/src/main/java/com/vmware/gerrit/owners/PathOwners.java
@@ -26,19 +26,23 @@
 import java.util.Map;
 import java.util.Set;
 
+/**
+ * Calculates the owners of a patch list.
+ */
+// TODO(vspivak): provide assisted factory
 public class PathOwners {
 
   private static final Logger log = LoggerFactory.getLogger(PathOwners.class);
 
   private final SetMultimap<String, Account.Id> owners;
 
-  private final Repository repository;
-
   private final AccountResolver resolver;
 
+  private final Repository repository;
+
   private final PatchList patchList;
 
-  public PathOwners(Repository repository, AccountResolver resolver, PatchList patchList) {
+  public PathOwners(AccountResolver resolver, Repository repository, PatchList patchList) {
     this.repository = repository;
     this.resolver = resolver;
     this.patchList = patchList;
diff --git a/src/main/java/com/vmware/gerrit/owners/PathOwnersEntry.java b/gerrit-owners/src/main/java/com/vmware/gerrit/owners/PathOwnersEntry.java
similarity index 81%
rename from src/main/java/com/vmware/gerrit/owners/PathOwnersEntry.java
rename to gerrit-owners/src/main/java/com/vmware/gerrit/owners/PathOwnersEntry.java
index e97187c..c0209ac 100644
--- a/src/main/java/com/vmware/gerrit/owners/PathOwnersEntry.java
+++ b/gerrit-owners/src/main/java/com/vmware/gerrit/owners/PathOwnersEntry.java
@@ -9,7 +9,12 @@
 import java.util.HashSet;
 import java.util.Set;
 
-public class PathOwnersEntry {
+/**
+ * Path Owners Entry.
+ * <p/>
+ * Used internally by PathOwners to represent and compute the owners at a specific path.
+ */
+class PathOwnersEntry {
   private String ownersPath;
   private Set<Account.Id> owners;
 
diff --git a/src/main/java/gerrit_owners/PRED_owner_2.java b/gerrit-owners/src/main/java/gerrit_owners/PRED_owner_2.java
similarity index 100%
rename from src/main/java/gerrit_owners/PRED_owner_2.java
rename to gerrit-owners/src/main/java/gerrit_owners/PRED_owner_2.java
diff --git a/src/main/prolog/gerrit_owners.pl b/gerrit-owners/src/main/prolog/gerrit_owners.pl
similarity index 100%
rename from src/main/prolog/gerrit_owners.pl
rename to gerrit-owners/src/main/prolog/gerrit_owners.pl
diff --git a/pom.xml b/pom.xml
index 2ef8852..525455e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,17 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
-Copyright (C) 2012 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
+Copyright (c) 2013 VMware, Inc. All Rights Reserved.
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
@@ -19,184 +8,121 @@
   <modelVersion>4.0.0</modelVersion>
 
   <groupId>com.vmware.gerrit</groupId>
-  <artifactId>gerrit-owners</artifactId>
-  <packaging>jar</packaging>
+  <artifactId>gerrit-owners-parent</artifactId>
+  <packaging>pom</packaging>
   <version>1.0-SNAPSHOT</version>
-  <name>gerrit-owners</name>
+
+  <name>gerrit-owners-parent</name>
+  <url>http://github.com/vadims/gerrit-owners</url>
 
   <properties>
     <Gerrit-ApiType>plugin</Gerrit-ApiType>
-    <Gerrit-ApiVersion>2.7-SNAPSHOT</Gerrit-ApiVersion>
+    <Gerrit-ApiVersion>2.6-SNAPSHOT</Gerrit-ApiVersion>
+
+    <project.build.sourceEncoding>
+      UTF-8
+    </project.build.sourceEncoding>
+    <project.reporting.outputEncoding>
+      UTF-8
+    </project.reporting.outputEncoding>
   </properties>
 
+  <modules>
+    <module>gerrit-owners</module>
+  </modules>
+
   <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>2.4</version>
+        </plugin>
+
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>2.3.2</version>
+        </plugin>
+
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-shade-plugin</artifactId>
+          <version>1.6</version>
+        </plugin>
+
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-antrun-plugin</artifactId>
+          <version>1.7</version>
+        </plugin>
+
+        <plugin>
+          <groupId>org.codehaus.mojo</groupId>
+          <artifactId>build-helper-maven-plugin</artifactId>
+          <version>1.8</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+
     <plugins>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-jar-plugin</artifactId>
-        <version>2.4</version>
-      </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>2.3.2</version>
         <configuration>
           <source>1.6</source>
           <target>1.6</target>
           <encoding>UTF-8</encoding>
         </configuration>
       </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-antrun-plugin</artifactId>
-        <version>1.7</version>
-        <executions>
-          <execution>
-            <id>prolog-to-java</id>
-            <phase>generate-sources</phase>
-            <goals>
-              <goal>run</goal>
-            </goals>
-            <configuration>
-              <target>
-                <property name="gensrc" location="${project.build.directory}/generated-sources"/>
-
-                <java classname="com.googlecode.prolog_cafe.compiler.Compiler"
-                      fork="true"
-                      failonerror="true"
-                      classpathref="maven.compile.classpath">
-                  <arg value="--show-stack-trace"/>
-                  <arg value="-O"/>
-                  <arg value="-am"/><arg value="${gensrc}/prolog-am"/>
-                  <arg value="-s" /><arg value="${gensrc}/prolog-java"/>
-                  <arg value="src/main/prolog/gerrit_owners.pl"/>
-                </java>
-              </target>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
-
-      <plugin>
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>build-helper-maven-plugin</artifactId>
-        <version>1.8</version>
-        <executions>
-          <execution>
-            <id>add-source</id>
-            <phase>generate-sources</phase>
-            <goals>
-              <goal>add-source</goal>
-            </goals>
-            <configuration>
-              <sources>
-                <source>${project.build.directory}/generated-sources/prolog-java</source>
-              </sources>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-shade-plugin</artifactId>
-        <configuration>
-          <createDependencyReducedPom>false</createDependencyReducedPom>
-          <promoteTransitiveDependencies>true</promoteTransitiveDependencies>
-          <artifactSet>
-            <excludes>
-              <exclude>com.gerritforge:*</exclude>
-              <exclude>com.google.gerrit:*</exclude>
-              <exclude>org.bouncycastle:*</exclude>
-              <exclude>org.slf4j:*</exclude>
-              <exclude>com.google.guava:*</exclude>
-              <exclude>org.eclipse.jgit:*</exclude>
-              <exclude>wsdl4j:wsdl4j:*</exclude>
-            </excludes>
-          </artifactSet>
-          <transformers>
-            <transformer
-                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-              <manifestEntries>
-                <Implementation-Vendor>VMware, Inc.</Implementation-Vendor>
-                <Implementation-URL>http://github.com/vadims/gerrit-owners</Implementation-URL>
-                <Implementation-Title>${Gerrit-ApiType} ${project.artifactId}</Implementation-Title>
-                <Implementation-Version>${project.version}</Implementation-Version>
-                <Gerrit-ApiType>${Gerrit-ApiType}</Gerrit-ApiType>
-                <Gerrit-ApiVersion>${project.version}</Gerrit-ApiVersion>
-              </manifestEntries>
-            </transformer>
-          </transformers>
-        </configuration>
-        <executions>
-          <execution>
-            <phase>package</phase>
-            <goals>
-              <goal>shade</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
-
     </plugins>
   </build>
 
   <dependencies>
     <dependency>
-      <groupId>com.google.gerrit</groupId>
-      <artifactId>gerrit-${Gerrit-ApiType}-api</artifactId>
-      <version>${Gerrit-ApiVersion}</version>
-      <scope>provided</scope>
-    </dependency>
-
-    <dependency>
-      <groupId>com.google.gerrit</groupId>
-      <artifactId>gerrit-server</artifactId>
-      <version>${Gerrit-ApiVersion}</version>
-      <scope>provided</scope>
-    </dependency>
-
-    <dependency>
-      <groupId>com.googlecode.prolog-cafe</groupId>
-      <artifactId>PrologCafe</artifactId>
-      <version>1.3</version>
-      <scope>provided</scope>
-    </dependency>
-
-    <dependency>
-      <groupId>org.gitective</groupId>
-      <artifactId>gitective-core</artifactId>
-      <version>0.9.9</version>
-    </dependency>
-
-    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-core</artifactId>
-      <version>2.2.0</version>
-    </dependency>
-
-    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-databind</artifactId>
-      <version>2.2.0</version>
-    </dependency>
-
-    <dependency>
-      <groupId>com.fasterxml.jackson.dataformat</groupId>
-      <artifactId>jackson-dataformat-yaml</artifactId>
-      <version>2.1.4</version>
-    </dependency>
-
-    <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.8.1</version>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.easymock</groupId>
+      <artifactId>easymock</artifactId>
       <scope>test</scope>
     </dependency>
   </dependencies>
 
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>com.google.gerrit</groupId>
+        <artifactId>gerrit-${Gerrit-ApiType}-api</artifactId>
+        <version>${Gerrit-ApiVersion}</version>
+        <scope>provided</scope>
+      </dependency>
+
+      <dependency>
+        <groupId>com.google.gerrit</groupId>
+        <artifactId>gerrit-server</artifactId>
+        <version>${Gerrit-ApiVersion}</version>
+        <scope>provided</scope>
+      </dependency>
+
+      <dependency>
+        <groupId>junit</groupId>
+        <artifactId>junit</artifactId>
+        <version>4.11</version>
+      </dependency>
+
+      <dependency>
+        <groupId>org.easymock</groupId>
+        <artifactId>easymock</artifactId>
+        <version>3.0</version>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
   <repositories>
     <repository>
       <id>gerrit-api-repository</id>