Don't build the "Story of Your Compile" report by default

Creating this report is expensive, and its not generally used
during development.  Don't bother with it unless requested by
a developer by passing -Dgwt.soyc=true.

Change-Id: I8a9a97ea7c1d4e8404fe32fa5c9fe0ca686db01b
Signed-off-by: Shawn O. Pearce <sop@google.com>
diff --git a/gerrit-gwtui/pom.xml b/gerrit-gwtui/pom.xml
index c106211..f88b7f2 100644
--- a/gerrit-gwtui/pom.xml
+++ b/gerrit-gwtui/pom.xml
@@ -155,6 +155,7 @@
         <configuration>
           <module>com.google.gerrit.GerritGwtUI</module>
           <extraJvmArgs>-Xmx512m</extraJvmArgs>
+          <soyc>${gwt.soyc}</soyc>
         </configuration>
         <executions>
           <execution>
diff --git a/pom.xml b/pom.xml
index df5c825..effb1c9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -55,6 +55,8 @@
     <guiceVersion>2.0</guiceVersion>
     <jettyVersion>7.0.1.v20091125</jettyVersion>
 
+    <gwt.soyc>false</gwt.soyc>
+
     <project.build.sourceEncoding>
       UTF-8
     </project.build.sourceEncoding>