Delete some dead code.
api: clean up access checking middleware.
Remove dead line from settings.
Update changelog
v0.9.5
Fix util import.
v0.9.6
Move search paths to kb_common
setup: make celery required; remove sqlite, mysql, and pil from explicit deps.

sqlite, mysql, and pil/pillow may be installed separately.  Their presence in
setup.py makes it difficult to use a system package.
settings: clean up defaults
Delete some obsolete stuff.
Move kegweb.wsgi and local_settings example files into deploy dir.
Move setup.py to top level.
Move `pykeg/src/pykeg/` to `pykeg/`.
setup: remove explicit distribute dependency; remove protobuf link.

PyPI's protobuf distribution seems to work fine these days..
settings: update twitter socialregistration name
Move version into pykeg module.
Fix version.
Drop protobuf requirement; require kegbot-api v0.1.5
setup: pin kegbot-api to v0.1.2 until setuptools wierdness is resolved.