* Use raw web sockets instead of socket.io. closes#114
* promote most plugin code to be actually integrated with
groovebasin, except last.fm
* ability to upgrade from mpd protocol to groovebasin protocol
* serialize/deserialize lastQueueDate and update it for all types of queuing.
Fixes DynamicMode losing randomness data on server restart.
* repeat state is saved between restarts
* fixed a race condition in player.importFile
* a smaller subset of db file properties are sent to the server, reducing
library payload size
* diffs are sent to client for playlist and library. closes#142
* information is no longer requested in the groovebasin API; it is only
subscribed to. closes#115
* all commands go through the permissions framework. see #37
* chat is deleted for now. closes#17
* update to latest superagent and leveldb
* fix stream activating and deactivating when seeking and not streaming
