spacer improvements - just some

It'd be nice if there was a "Flexable" spacer like the one in Firefox where it will always fill as much room as possible without pushing anything off the screen. I like to have my tlb clock and turn off button farthest to the right, but if I switch resolutions or too many icons get into the notification area the clock is gone into the submenu It's not a huge deal, but it'd be nice....