FormulaEditorKeyboardTest API 10 update
UiTestUtils update
solo.sleep update
update
UiTests fixed
sleep replaced by wait
FormulaElement: Random interpretation fix
UiTest: Robotium fixes
Toast length change from short to long.

* quick fix for Stackoverflow on 2.3.3 device.
* testStrings() updated.
LineEndings fixed
Copy&Paste fix
Merge branch 'FormulaEditor' of https://github.com/Catrobat/Catroid into FormulaEditor
sleeps added.
Formula selection on single Tab refactored
Merge branch 'FormulaEditor' into UserVariablesBricks
Initial commit of ChangeVariableBy brick