I've lowered the version number from 0.3.0 to 0.3.0a1 as the GUI still has many bugs, so you need to do a python setup.py develop --uninstall and then re-issue the develop command.
Added infrastructure for Drag'nDrop support. Implemented DnD for the cover.
Added initial support for updating metadata in LRF files when it is updated for a logical file. This needs testing. Especially worrying are the deprecation warnings about integer overflow in struct.pack when updating the thumbnail