Transform actual station when loving/banning songs

Loving/banning a song from a shared station while playing quickmix
resulted in “call not allowed”, because we tried to transform the
quickmix instead of the song’s real station. Fixes #354.
Fix station name when deleting a station
Add missing events to genre station selection

Two new events: stationfetchgenre, stationaddgenre
custom save location in config file :)
Merge branch 'master' of git://github.com/PromyLOPh/pianobar