Changes in 0.51
1. Fix a bug that block playing cue files without FILE section

Changes in 0.5
1. Rebase on pygst and pygtk.
2. Implement the pause function. (press p or SPACE key to pause and resume)
3. Fix the stability bug of track seeking.
4. Fix the -a option


IMPORTANT:
Please install pygst and pygtk.
Installing more gstreamers plugins will give you wider codecs.
Installing gstreamer-ffmpeg is HIGHLY RECOMMENDED for playing music file like monkey audio.