Merge pull request #1 from donjakobo/master

Updating
Added twitter and facebook instructions
added testing section
added google/openid config instructions
Added Yahoo! instructions
Merge pull request #28 from iam1980/patch-1

Added configuration instructions
Merge pull request #2 from donjakobo/master

updating
Added "forgot_password_recaptcha_enabled" option, fixed some formatting in sign_in.php
reformat sign_in.php
Added validation for username&email, removed output for form in order to catch XSS
Readded sanitised output
Merge pull request #29 from iam1980/master

XSS on forgot password, also added missing validation (username & password)
Add get role by name to roles model.
Clean up view for Manage Users - Show All
Create a way to manage users.
Add the ability to (Un)Ban Users
Use local copy of jquery since latest has potential of creating production bugs.
Add interface for managing roles, fix issue with local jquery path.
Add a is_system column to roles and permissions, which will allow you to check if a role or permission can be modified.
Set default values for is_system for roles and permissions the system relies on.