Lots of changes in a further attempt to more intelligently integrate with Keyring.
- Added additional method for adding Keyring stuff to config if it's available.
	- This should allow facebook comments stuff to work with no further changes.
	- Might make a few other items work with no changes as well.
- Possibly have basic methodology for Facebook API vs. Keyring OAuth worked out.
	- See oauth method in bSocial_Facebook
	- Also see line 28 of bSocial_Facebook_User_Stream where we'd call OAuth if keyring is active instead of Facebook API
		- Will require refactoring a bit obviously.
	- Also see get_fb_user_id method in bSocial_Facebook.
		- Now returns user_id via Keyring when it's available
		- Will probably make sense to rework that a bit to allow for specific WP user_id values to override the default return but this is a first step.