hotfix for image selection for 4.4. kitkat devices.
Intent changed to ACTION_PICK same as in new object workflow.

ACTION_PICK is still working fine on 4.4 devices.
Merge pull request #847 from Catrobat/issue#825hotfix

Hotfix for image selection for 4.4. kitkat devices. On 4.4 devices picking pictures from "Downloads" or "Google Drive" in the Dialog opened by an ACTION_GET_CONTENT intent return different references. Further work needed.

info for issue #846: now it's using the same intent, but still a different layout.