Fix old alias
It looks like the convert option for wma used to be called windows media.  We could just remove this alias, but might be good to keep for backwards compatibility.
@@ -37,7 +37,7 @@ _temp_files = [] # Keep track of temporary transcoded files for deletion.
# Some convenient alternate names for formats.
ALIASES = {
- 'wma': 'windows media',
+ 'windows media': 'wma',
'vorbis': 'ogg',
}
