Updated Android Lint settings to ignore some issues
Target latest Android version
Updated AndroidManifest before release
Removed old launcher icon
Replaced logo in action bar
Merge branch 'unstable' of
https://github.com/senseobservationsystems/sense-android-app.git into
release-2.6.0

Conflicts:
	AndroidManifest.xml
Updated compatibility layout xml to fix compilation error after
removing sense logo drawable
hotfix: changed min height of app widget to make it 4x1 size again
Use Async task to toggle main status of the sense service
removed some unnecessary logging
hotfix: hash password before registering