Preparing to target Android 5.0 (API level 21)

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Fix Android PRNG bug (fix #77)

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Travis-CI: update to build-tools 21.0.1 and API level 21

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Rotate compressed image based on EXIF data (fix #231)

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Fix NPE after screen orientation (fix #230)

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Update emojicon commit pointer

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Merge branch 'master' into progress_balloon

Signed-off-by: Andrea Cappelli <a.cappelli87@gmail.com>

Conflicts:
	app/build.gradle