v0.4.1

Changes

• Updated top level informational files
• Used soxi instead of gstreamer to determine a track's length
• Error reporting enhancements
• Updated README
• Added Argparse & removed external git submodules
• Update suggested commands given by drive list
• Updated setup.py
• Fixed bug (False value not being persisted correctly for defeat_cache)
• Improved cdrdao error handling & ejection behavior

Known issues

#99 (whipper not picking up all settings in whipper.conf)