fixed GSOCSF-6 Variabletext doesn't get deleted
fixed GSOCSF-7 (NullPointer Exception in AddBrickFragment - OnDestroy()
fixed GSOCSF-8 Backstack of Script does not get updated correctly after deleting a userbrick
fixed GSOCSF-9 Define brick should not be deletable/copyable
added "testDeleteUserBrickAndCheckIfScriptActivityUpdates"