Rewrote git middleware with the same pattern as recent fix for
#176...
Rewrote git middleware with the same pattern as recent fix for
#176
- additionally fixed dulwich server bug, that used old deprecated method. This fix caused huge improvement of speed for fetching git repos
- moved simplehg and simplegit middleware into begining of pylons callstack. This low level middleware
don't need to run any of the middlewares except each other.
