Refactor SoundRecorder

* set SoundRecorderActivity to portrait
* removed getLastCustomNonConfigurationInstance() - was needed if orientation has changed during recording
* refactored id's in xml (and got rid of lint warnings with one exception - noContentDescription)
* added test for orientation portrait
* adapted other testOrientation (see commit)

unfortunately neither OutOfMemoryExcpetion nor resourceNotFoundException are fixed with this fix...

testrun: http://catrobatgw.ist.tugraz.at:8080/job/Catroid-custom-branch-test/120/