[core] Refactor engine

This is going to be a bit more comprehensive than anticipated. In order
to cleanly refactor the core and the engine, basically start from
scratch with the implementation.

Goals:

* Test coverage
* Maintain backwards compatibility with module interface as much as
  possible (but still make modules easier to code)
* Simplicity

see #23

bumblebee-status

@@ -1,18 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-import bumblebee.config
-import bumblebee.engine
-
-def main():
-    config = bumblebee.config.Config(sys.argv[1:])
-
-    engine = bumblebee.engine.Engine(config)
-    engine.load_modules()
-
-    engine.run()
-
-if __name__ == "__main__":
-    main()
-
-# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4