Make it possible to put the site in maintenance mode
By specifying the UTC date from which the maintenance shoulds start,
developers can put the site in 'maintenance' mode.
Also redirect to /maintenance if we get a CapabilityDisabledError.
Patch by: Sverre Rabbelier
* html #container { position:static; } /* keep header from flowing off the page */
* html .colMS #content-related { margin-right:0; margin-left:10px; position:static; } /* put the right sidebars back on the page */
* html .colSM #content-related { margin-right:10px; margin-left:-115px; position:static; } /* put the left sidebars back on the page */
* html .form-row { height:1%; }
* html .dashboard #content { width:768px; } /* proper fixed width for dashboard in IE6 */
* html .dashboard #content-main { width:535px; } /* proper fixed width for dashboard in IE6 */
* html #changelist-filter ul { margin-right:-10px; } /* fix right margin for changelist filters in IE6 */
* html .change-list .filtered { height:400px; } /* IE ignores min-height, but treats height as if it were min-height */