Quickfix for SoundRecorderTest

for over 2 months we had problems with the SoundRecorderTest.
Most of the time, a string ressource is not found (although it is there :D)
a sample console output can be found here [1].
the history of the last runs can be found here [2] - pretty annoying...

with the quickfix the test is working [3].

of course, it is a quickfix and the problem with the ressource should be figured out - but we also need "green" builds on jenkins :)

[1]http://catrobatgw.ist.tugraz.at:8080/job/Catroid/1290/testReport/junit/org.catrobat.catroid.uitest.ui/SoundRecorderTest/testRecordMultipleSounds/
[2]http://catrobatgw.ist.tugraz.at:8080/job/Catroid/1290/testReport/junit/org.catrobat.catroid.uitest.ui/SoundRecorderTest/testRecordMultipleSounds/history/?
[3]http://catrobatgw.ist.tugraz.at:8080/job/Catroid-single-UI-test/183/console