Adding some filter hooks for us to use.
Merge pull request #1 from methnen/filters

Adding some filter hooks for us to use.
A few mostly minor tweaks to oauth2 class in keyring:
- Removed (int) typing from line 84, as far as I can tell facebook doesn't say this has to be an integer and in our token store it's not.
- Removed a filter hook I'd previous added but that wasn't necessary since oauth2 is an extension of oauth1.
- Weee!
Merge pull request #2 from methnen/more-keyring-tweaks

A few mostly minor tweaks to oauth2 class in keyring:
don't int cast the var that doesn't need tp be an int
remove other annoying int castings
Merge pull request #3 from zbtirrell/master

don't int cast the var that doesn't need to be an int
Merge branch 'master' of github.com:methnen/keyring

Conflicts:
	service.php
Bringing our fork of this in line with stock Keying with one exception
- Moved the filter hook for keyring_admin_url around so that it passes params and the URL
- The above necessitated the rewriting of the filter at the top of the file.
	- Path for the above was sent to beau but he hasn't had a chance to give his thoughts yet.
Merge pull request #1 from methnen/master

Keyring Changes
Merge branch 'master' of github.com:wp-plugins/keyring