fix issue #6 (Block screen on rotate)
merge issue fix
Changed target version to 19 (Kit Kat).
Some changes for the new Android studio (0.3.2). Now is possible to use Java 1.7 features (except try with resource).
Merge branch 'master' into feature/appStructure

Conflicts:
	AndroidManifest.xml
changed minSdkVersion in gradle file to correspond with the value in the manifest