Comments weren't being copied when merged from the various resource tables. Also refactored the JavaClassGenerator to omit a class if no entries exist for it. Change-Id: I6eaa89b7b3715bc05403635a2baf0d1db3efd142
This includes comments from AndroidManifest.xml. Change-Id: I412d9ecb12bad20a49a683d6b3bea4a0be1235ae