Migrating to new gradle folder structure

Dependencies now loaded from maven central except libgdx and polidea instrument runner for now
fix tests for new gradle folder structure

emulatorWarnings fixed. - solo.searchText replaced to solo.waitForText
broadcastBricksTest
MainMenuActivityTest fixed
fix lint
resolve merge conflicts and fix all tests
quickfix for uitests

- no context available; currently hardcoded program names
  needed for cleaning up pocket code directory
- BroadcastBricksTest caused IndexOutOfBoundsExceptions -
  starting from MainMenuActivity should work
- adapted gradle file - path to checkstyle.xml was wrong
- modified SettingsActivityTest; testOrientation tested
  MainMenuActivty instead of SettingsActivity
- WebView methods have to be run on the UI Thread -
  at least our new emulator (api18) complained
- move randomly failing testcases to Devicetest
create a screenshot when test fails
refactor Ui-Tests
Seperate copyright header text
Merge branch 'develop-new-kaufi-styp' into studioSettings

Conflicts:
	catroidSourceTest/src/org/catrobat/catroid/test/code/StringsTest.java
Merge branch 'studioSettings' of github.com:Catrobat/Catroid into studioSettings

Conflicts:
	.idea/copyright/profiles_settings.xml