Merge pull request #210 from specialbrand/1.0

Setting the length for array_slice in fuel_uri_string() to address issue with a NULL value returning blank in PHP 5.1.6
fix for form pages ckeditor_config documentation
Merge branch '1.0' of github.com:daylightstudio/FUEL-CMS into 1.0
fix for blocks if an object is passed instead of an array to initiliaze.
fixed broken jqx URL in simple module documentation
added check for an empty array with array_group helper
added ability to set tabindex parameter on Form_builder fields
fixed repeating background displayed for fuel/tools page
removed unused $session_data array from Fuel_auth
fixed issue with redirect_to URL in assets
added filter parameter to url custom field to filter the list of URLs based on a regex
fixed issue with filter parameter for the url field type that will cause errors when "+" is used.
updated default user_agents and foreign_chars application configs to match CI 3.0.
fixed javascript when CKEditor is not included and you click the preview button
fixed issue with last updated information was not being displayed in the pages module
a fix for default NULL values for enum fields to display check the correct value after save