Use threading instead of Gdk.threads_add_idle.
Fix a bug with a int convert to a list in client.add_favorite_songs.
Use entry_delete_by_type instead of source.clear(). Move the LoginDialog class in a single file.
Download lyric of current song when get_playback_uri. Add config key 'lyric-path' to schema file.
Fix the errors about text.
Fix a bug in source.add().
Modity some texts of language. Put the cookie file into the user cache dir.
Fix a bug about getting a error when the source is deleted by self if it don't be selected.
Add Makefile and .po files.