GPII-233: updated the android-gpii script to read from v0.2 tag.
GPII-120 Bringing in Javi's README formatting fixes and ant.properties build path.  Selectively taking these files from his pull request.
GPII-344: Fixing build issue with jtar dependency

* Checking if app/libs folder exists, if not, then create it
Merge remote-tracking branch 'javihernandez/GPII-344'

* javihernandez/GPII-344:
  GPII-344: Fixing build issue with jtar dependency
GPII-360: Adds Javi's fix from the v0.2 so that the system starts up correctly on Android.
Fixing merge conflict
GPII-233 Merge remote-tracking branch 'yzen/v0.2' into v0.2