Merge pull request #6 from specialbrand/master

Fix syntax error in the permissions install SQL.
added $just_count parameter to list_items method
Merge branch 'master' of https://github.com/daylightstudio/FUEL-CMS-Blog-Module
fixed Fuel_blog object references in blog_helper
updated access to the $tables array to point to Base_module_model which will have a more accurate list of loaded tables
added xss_clean function to search controller for "q" search term
SQL upgrade additions to migrate to fuel_relationships and fuel_settings tables
copyright and user guide link updates in comments
added CDATA for description value of RSS feed
added pubDate to RSS feed
Updates to comment links and updated link on README
fixed typo in README
fixes for posts category count to take into account unpublished posts
changed XML header to only be outputted at the method level instead of the constructor
set content and excerpts fields to automatically use markdown configuration settings if formatting options in blog config is only limited to markdown.
changed blog_url function so argument is optional
fixed is_home method on Fuel_blog to remove any preceding or trailing slashes
added ability to view category posts by date
updated Fuel_blog documentation to auto generated
added ability to pass category to archives