updated to work with kohana 3.3
removed old auth dir
removed old folders
updated readme
typo in readme
* Merged pusherman's commits
* Upgrade adLDAP to 4.0.4
* Upgrade logout action to Kohana 3.3
* Add Auth::get_roles(), to retrieve simple list of LDAP groups, to help with Auth::logged_in($role)
* Clean up Auth::logged_in() to use get_roles() (and actually work with a $role provided)
* Coding standards conformance in the two modified files (there's more to be done, elsewhere)