Add SyncedState with unit test.
Bug fix: syncedState wasn't getting set correctly
Bug fix: unspecified sort order for initial load from server.
Bug fix: got rid of command #2 after syncing command #1
Bug fix: rake db:migrate didn't know what db to run against
Wrote interface with backend (now called SyncCommand).
Rip out backbone and jquery shims
unit_tests script can take arguments
Start SyncCommandTest (requires using fake xmlhttprequest)