update jdt.core & tests to I20130911-2000
diff --git a/org.eclipse.jdt.core/pom.xml b/org.eclipse.jdt.core/pom.xml
index 4e908bf..1cd2b9c 100644
--- a/org.eclipse.jdt.core/pom.xml
+++ b/org.eclipse.jdt.core/pom.xml
@@ -21,6 +21,10 @@
   <version>3.10.0-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
 
+  <properties>
+    <defaultSigning-excludeInnerJars>true</defaultSigning-excludeInnerJars>
+  </properties>
+
   <build>
     <plugins>
     <plugin>