DocsHelper_AddTrackRowTest is using a MockContext, which
cannot be used to call DateFormat.getDateFormat(context).
Refactor a getDisplayDate method in DocsHelper and allow the
test to override the method.
Also update .hgignore to AnnotationProcessor.log.
- MyTrack app should export google-common.jar, common-logging-1.1.1.jar,
protobuf-java-2.3.0-lite.jar and the MyTracksLib library.
- A test should only depend on its app. E.g., it should not need to
reference the MyTracksLib library again.
Jimmy Shih