- change build script to revert all changes to jme3 before build

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@8484 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

build.xml

@@ -75,6 +75,15 @@
       -->
       
     <target name="hudson-nightly" depends="update-platform">
+        <exec executable="svn" dir="engine">
+            <arg value="cleanup" />
+        </exec>
+        <exec executable="svn" dir="engine">
+            <arg value="revert" />
+        </exec>
+        <exec executable="svn" dir="engine">
+            <arg value="cleanup" />
+        </exec>
         <exec executable="svn" dir="engine">
             <arg value="update" />
         </exec>
@@ -85,6 +94,15 @@
     </target>
 
     <target name="hudson-stable" depends="update-platform">
+        <exec executable="svn" dir="engine">
+            <arg value="cleanup" />
+        </exec>
+        <exec executable="svn" dir="engine">
+            <arg value="revert" />
+        </exec>
+        <exec executable="svn" dir="engine">
+            <arg value="cleanup" />
+        </exec>
         <exec executable="svn" dir="engine">
             <arg value="update" />
         </exec>