* revert the rewrite of MP4_GETSTRINGZ in the previous commit, as strnlen is a GNU-extension and therefore unavailable on Mac OS X and other platforms. I think this way is easier than writing an own implementation for OSX, but feel free to tell me otherwise. (closes #1213)

Fixed a few invalid access on broken files.
Fixed compilation warnings.

Make it automatic.

POTFILES.in: Refresh it

vout: attach picture heap to temporary picture, so that modules (such as blend) have access to the extra info in heap