quickfix for IllegalStateException on Jenkins

issue#116 describes the problem!

* removed the footerviews in list of sprites, and list of projects (since they got thrown away in the last UI mockup) - one testcase caused an IllegalStateException from time to time!
* tried a quickfix in two testcases

did several jenkins runs - the IllegalstateException did not occur any more
http://catrobatgw.ist.tugraz.at:8080/job/Catroid-custom-branch-test/87/