Songbird 0.7 RC1

* Refreshed UI: refined look and feel
* New setup assistant: get up and running in Songbird with ease (requires a fresh profile)
* Smart playlists: create dynamic playlists based on criteria you set
* Concert calendar: find upcoming shows in your area based on the artists in your library
* Last.fm support: scrobble the tracks you play and love or ban them
* GStreamer on all platforms: this is our first cross platform release using GStreamer as our new media core, by default it handles all FLAC playback on Windows/Mac (or you can enable GStreamer to handle more codecs)
* Zippier metadata reading: much faster media scanning
* Reduced memory useage on Windows/Linux: we landed jemalloc as the applications memory allocator