moved menu inflating and handling of base menu items into BaseActivity

fixes CAT-1055
Implemented FaceDetection and Camera support
Fixed FaceDetection
compatibility of Led Brick (Singleton Camera)
Merge pull request #1081 from Catrobat/restoreFacedetection

Restore facedetection
Merge pull request #1076 from Catrobat/CAT-1055

[CAT-1055] Complete [overflow] menu entries on all screens
cat-1055 #fixed
fixed CAT-531

added try/catch to location of possible exceptions

added default case to switch statement
Refactored XStreamToSupportCatrobatLanguageVersion091AndBeforeTest.java Upgraded language version to 0.93
Merge pull request #1066 from Catrobat/refactorBricksFixes

[GSOCTC-1.1] Refactor Bricks Fixes
Merge pull request #1083 from Catrobat/CAT-531

[CAT-531] NullPointerException: LookFragment.onActivityCreated
cat-531 #fixed
[CAT-1095] FormulaEditorComputeDialog closes on inside click.