redesigned stage menu

there's an issue with the menu/background image which dosen't fill the
entire width
redesign of stage menu completed
changes FEFragment call
change FEListFragment and FEVariableListFragment call
remove author-comment
remove copy error
fix of look_rotation variable and refactor some method-names for better distiction
rename a method
fix look-variables and refactor some method-names
added test-file and change android-version to 0.7.1beta
changes two variables to constants
to comment this line was only a test for another problem
fix test
refactor methodname of new test
Merge pull request #292 from Catrobat/lookRotationVariableFix

Look rotation variable fix
Merge pull request #299 from Catrobat/FEFragmentLintErrorFixNew

FormulaEditor-Fragment lint error fix
reverted project file
Merge branch 'master' into stagemenu

Conflicts:
	catroid/.project
	catroid/res/layout/dialog_stage.xml
	catroid/res/values/colors.xml
	catroid/src/org/catrobat/catroid/ui/dialogs/StageDialog.java
Merge pull request #312 from Catrobat/stagemenu

Stagemenu
Quickfix for the StageDialogTest, because of the missing maximize button the testMaximizeStretch method can not be compiled