Basic tabbed list functionality.

To Do:
Show active tab by comparing URL against this URL.
Provide menu functionality to add URL filters.
Add active tab functionality
Address Rob's review comments.
Fixes for non-tabbed lists.
Fix to strip JQuery::dump <pre> tag
changed, elements renderlistdata method forces that 2nd param is a stdClass - inline edit now setting 2nd param as stdclass
fixed date element, default to today, on new record would always set to todays date on save, regardless of what date was selected
Added sanity check in setRowId, so if rowId is null when we're done, se
it to empty string, to keep code like "if ($this->rowId === '')" happy.
adding missing params to from php plugin - thx JFQ
fixed image element front end folder select would not show folders images
fixed js erro in front end csv import
update min js files and remove debug echo
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3
notice in youtube element due to change in renderListData() mehtod attributes
fixed: form php plugin no longer had access to $this->data in scripts
fixed: notice in birthday plugin
fixed: cron plugin page couldnt use fabrikeditor plugin
removed rss use as fake key option
added: validation rule setMessage() method to enable setting of validation error message from php plugin
fixed error in form plugin getdata methods