Upgraded to CodeIgniter 2.2.0
added .htaccess file to cache dir.
adjusted title/hover message for uc id to be a variable value, see #626
Merge pull request #629 from stopfstedt/codeigniter_upgrade

Upgraded to CodeIgniter 2.2.0 fingers crossed. manual testing for all items in this release, any anomalous behavior will trigger a revert to prior this merge.....
Merge pull request #630 from thecoolestguy/uc_uid_title_message_fix

adjusted title/hover message for uc id to be a variable value, see #626
enclose uc_uid length OR statement to group the conditions together
Merge pull request #631 from thecoolestguy/uc_uid_configuration_changes

enclosed uc_uid length OR statement to group the conditions to be properly evaluated together