Changing float to text-align for conveniencelinks and editreasons links. Since headin...

Changing float to text-align for conveniencelinks and editreasons links. Since headings have overflow:hidden this is causing the border to stop when this block is touched (atleast in Chrome/Safari), since headings don't clear float. This doesn't have to be a float from what I can see and is better done as text-align so that any later elements on the page will not be affected by the page flow.
Remove the line from Vector's main.css since it was already in shared.css