Arguments as parameter to function _real_main so it can be used programmatically
Use standard unit symbols in format_bytes
Add playlist and playlist_index to the help string for the output option

Also split the help string in different lines to make editing easier.
Added parenthesis for explicity
Fix --list-formats (Closes #799)
release 2013.04.22
TumblrIE

I haven't found many videos to test, so it may not work for all.
Merge pull request #792 from fp7/master

Parameters as arguments to main
Do not read configuration files if explicit arguments are given by a host program (#792)
Merge pull request #797 from AI0867/patch-1

Use standard unit symbols in format_bytes
Correct indentation
Merge branch 'master' of github.com:rg3/youtube-dl
Document order of preference for format selection (closes #798)
Disable colored messages in Windows (related #794)
More calls to trouble changed to report_error
YoutubeIE when no description is found use an empty unicode string (closes #800)
YouTube: Fall back to <meta> description if video is rated (Fixes #800)
Merge branch 'master' of git://github.com/rg3/youtube-dl