Fixed: [Issue 221] Unhandled event loop exception

https://code.google.com/p/protobuf-dt/issues/detail?id=221

com.google.eclipse.protobuf.ui/build.properties

diff --git a/com.google.eclipse.protobuf.ui/build.properties b/com.google.eclipse.protobuf.ui/build.properties
index 0ffd4f4..b7c9ed4 100644
--- a/com.google.eclipse.protobuf.ui/build.properties
+++ b/com.google.eclipse.protobuf.ui/build.properties
@@ -5,4 +5,5 @@
                plugin.xml,\
                OSGI-INF/,\
                icons/,\
-               OSGI-INF/l10n/bundle.properties
+               OSGI-INF/l10n/bundle.properties,\
+               resources/newFileContents.proto