Add function multimedia.ffmpeg.get_subprocess
Add missing arg
Add doctest to multimedia.ffmpeg.encode
Add "executable" argument to ffmpeg & x264 functions
Allow using own get_statistics function
Refactor multimedia module
Remove FIXMEs
Add to_filesize Django template tag
Use encoding utf-8 and not coding utf-8
Change default to scientific notation
Change default to 3 significant digits
Add timedelta template filter
Function filesystem.from_template can now use jinja2 to generate the content