Update antlr & its mvn plugin to 3.2

Change-Id: Ib5e4cf6529b24d38eec1a37410b186e67686033e
diff --git a/gerrit-server/src/main/antlr/com/google/gerrit/server/query/Query.g b/gerrit-server/src/main/antlr3/com/google/gerrit/server/query/Query.g
similarity index 100%
rename from gerrit-server/src/main/antlr/com/google/gerrit/server/query/Query.g
rename to gerrit-server/src/main/antlr3/com/google/gerrit/server/query/Query.g
diff --git a/pom.xml b/pom.xml
index 5d6fc9f..12e065f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -349,7 +349,7 @@
         <plugin>
           <groupId>org.antlr</groupId>
           <artifactId>antlr3-maven-plugin</artifactId>
-          <version>3.1.1</version>
+          <version>3.2</version>
         </plugin>
 
         <plugin>
@@ -579,7 +579,7 @@
       <dependency>
         <groupId>org.antlr</groupId>
         <artifactId>antlr</artifactId>
-        <version>3.1.1</version>
+        <version>3.2</version>
         <exclusions>
           <exclusion>
             <groupId>org.antlr</groupId>