Miro 2.5.3

Bug fixes:

#9512 (all) [patch included] Miro misinterprets HTTP headers with line breaks (Thank you Jason Woofenden!)
#11657 (Windows) internal error on launch - KeyError?: 'USERNAME'
#11987 (Windows) ile "os.pyc", line 166, in makedirs WindowsError?: [Error 2] The system cannot find the path specified: u'L:\\'
#12006 (all) URL with colon fails to download
#12028 (all) startup error from _convert_repr malformed data
#12032 (all) get_singleton failing often
#12109 (all) update to libtorrent 0.14.5
#12110 (Windows) upgrade to vlc 1.0.1
#12116 (Windows) Miro Window appears offscreen
#12147 (all) [patch included] Code still says "Subversion" in a few places (Thank you Jason Woofenden!)
#12150 (all) miro crashes if get_filename returns None
#12166 (all) TypeError?: coercing to Unicode: need string or buffer, NoneType? found
#12184 (all) repr dataset reset on taborder_order fails when channel list contains folders
#12185 (all) crashed caused when corrupted playlist taborder data
#12191 (all) my parent (57065) is not in database - causes unknown error on startup
#12197 (all) in _get_last_id, TypeError?: unsupported operand type(s) ... unknown error
#12202 (all) miro deletes media after migrating and restarting
#12208 (all) NameError?: global name 'ObjectNotFoundError?' is not defined