If brick not consistent

fixed issues #247, #276 for all bricks and task 4 of #349.
I've also set android:maxems accordingly for all bricks so that all views stay on the screen and set a default value for the if-brick (we should change it to true or false after that pull request is merged).

Jenkins testurn:
http://catrobatgw.ist.tugraz.at:8080/job/Catroid-custom-branch-test/989