fix url_relative_path error on windows
make upload path auto
fix pic save incomplete
fix 'thumb image return none error'
remove an extra 'return' token
fix dynamic gif thumb error
remove debugging print ..
a logic bug
666 -> 0o666
Merge pull request #291 from lanybass/master

upload images problem
Wording
Cleaned up JS a bit
AJAX foreign key loading for SQLa backend
Unit tests
MongoEngine AJAX FK loading
Widget fixes, MongoEngine backend support
Peewee backend support
FileAdmin unicode fixes
Removed debug print
Python 3 unit test fixes
Merge remote-tracking branch 'root/master'