Commented the line which turned the empty generator to None
Added new type 'Bool'
Fixed docstrings
Merge pull request #79 from Koblaid/add_bool_type

Add a new type "Bool
add proxy to registry when calling g.add_proxy()
Merge branch 'master' of github.com:espeed/bulbs
Merge remote-tracking branch 'upstream/master'
Removed my previous hack about the None in utils.py
I don't know how it got back there.
Probably it wasn't saved or so
Added checking of class parameters to master as well