application.js: updatePage() gets calls after each AJAX refresh
*  Refactored Scan#show and and Comments to be automatically refreshed via AJAX
*  Comment form now placed bellow the comments list
Issues table: updated to table-condensed and removed references
application.js: Broke element auto-refresh into functions
comments.js.coffee: resetCommentCounters function now makes the total-comments-counter visible
Fixed scan AJAX refresh bug
Reorganised issue and scan templates to support tabs for the issues table
Added support for Issue comments
Issue schema: Added  :verified_by and :verification_steps_by
Issue verification steps textarea height lowered to 150px
Issue table: nw includes a Rest tab for issues which don't belong to any other category
Issues table: Add a small explanation for each tab