Add bit library

Includes minor tweak to the docgen to make it compatible with our
codestyle. (Required so the docgen picks up on the bit library)
Merge pull request #110 from Xandaros/bit

Add bit library
Add 'onLoad' metamethod call for any library loaded through loadLibrary() func.

Fixes #111
Merge pull request #115 from awilliamson/iss111

Add 'onLoad' metamethod call for any library loaded through loadLibrary() func
Add SF.AddNotify

Fixes #113
Merge pull request #114 from awilliamson/iss113

Add SF.AddNotify