Fixed pathing of TinyMCE icon through addition of "wp_localize_script" call at end of "enqueue_admin_scripts()". Creates 'arve_mce_icon' var for use within plugin's TinyMCE plugin to fix hard-coding of "../wp-content/" relative path.
Merge pull request #6 from folkhack/master

Fixed pathing of TinyMCE icon through addition of "wp_localize_script" c...