Added copying of sprites
Fixed logcat output
merged original project's master branch
added two tests for copySprite

quick-fix for IndexOutOfBoundsException in Sprite: Line 147-150,
if a empty sprite is copied, Catroid crashes

i surrounded the code with a try-catch block, maybe you find a better
solution, like you are not even allowed to copy a empty sprite and
display an error dialog
Fixed the naming and added ActionMode for copying

* Fixed the naming of copied sprites
* Added an ActionMode for copying more than one sprite
adapted tests
Merge with master
little fixes for failing tests
Merged master
fixed problems with master merge
Merges master
fixed merging error
copy method for if-bricks added
If bricks and fix

- Copy methods for if bricks
- Fixed copying not working properly after merge
Removed unnecessary method call
Merge remote-tracking branch 'upstream/master' into copySprites
Fixed some errors
Merge pull request #167 from nikwen/copySprites

Added copying of sprites (Issue #58)
Thanks for your contribution, Niklas!