Fixing tests

This tests were fixed:

org.catrobat.catroid.uitest.ui.fragment.LookFragmentTest#testItemClick
org.catrobat.catroid.uitest.ui.fragment.LookFragmentTest#testCopySelectAll
org.catrobat.catroid.uitest.ui.fragment.LookFragmentTest#testDeleteLookContextMenu
org.catrobat.catroid.uitest.ui.fragment.LookFragmentTest#testSelectAllActionModeButton
org.catrobat.catroid.uitest.ui.fragment.LookFragmentTest#testDeleteSelectAll
org.catrobat.catroid.uitest.ui.dialog.RenameSpriteDialogTest#testRenameSpriteDialogMixedCase
org.catrobat.catroid.uitest.ui.fragment.SpritesListFragmentTest#testLocalVariablesWhenSpriteCopiedFromSpritesListFragment