fix typo in readme
[163] add super class Song
update README.todo
[163] add dummy netease.py
fix download problem: when with -H option,  user login successful but user is not VIP user
[163] netease.py conti
[163] add song/album parsing
bugfix album name encoding and album.song.group_dir
fix TopSong's song.group_dir
[163] start adjusting commander.py 2btested
[163] add 163 song/album parsing/downloading in commander
[163] add playlist parsing/downloading
[163] merge master into 163
after parsing, exit app if no download task
[163] add topSong parsing/downloading
[163] input file parsing/downloading
[163] input file parsing fixing
Merge branch 'master' into 163
[163] fix: slash in filename(song name)
[163] update help text, version, chglog