Update tit.php

Added option to set priority when adding the issue.
Update tit.php

Removed the signs of me being an absolute php newbie.
Update tit.php

Added CSS rule for the vertical scroll bar.
When there isn't enough entries on the list, the scroll bar will disappear.
This causes the main container (white background) to shift slightly to the right. Patch fixes this.
Merge pull request #5 from Tomoyapl/patch-1

Changes by Tomoyapl