Clean up: Add to .gitignore gen/ bin/ and local.properties
Add some documentation and sample local.properties files
Clean up: Remove google-play-services_lib/gen/
Documentation.
Use ${sdk.dir} (from local.properties) rather than /opt/android-sdk-linux/ in Ant build files (build.xml)
Upgrade target from android-10 to android-19 in google-play-services_lib project
Update gradlle/wrapper/?
Clean up: Exclude .iml files (IDEA projects) from GitHub
Clean up: Remove .settings/ from source control
Documentation.