get and set metadata for a MediaFile
skip image resizing if possible
skip ascii thumb resizing if necessary
added user upload limits
added tests
typos
made no upload limit the default
fixed tests and defaults
fixed tests and defaults
fixed tests
max file size
fixed tests and defaults
added tests
copying.txt
duplicate
fix after rebase
javascript limit validation
use media.get_uploader and fix typo
Merge remote-tracking branch 'refs/remotes/rodney757/file_limits'

Conflicts:
	mediagoblin/db/migrations.py
Merge remote-tracking branch 'refs/remotes/rodney757/reprocessing'

Conflicts:
	mediagoblin/db/migrations.py