bug#18107: emacsclient: maximization and size hints

[Carlos Pita <carlosjosepita@gmail.com>]

When you call emacsclient like this:

   emacsclient -c  -F "((fullscreen . maximized))"

the maximization ignores the size hints and some residual area could
be left behind, looking like a phantom modeline below the real one.
This doesn't happen when you manually or programatically maximize
emacs after launch. Extra space could be reserved at the east and
south edges, of course, because of the multiple-of-char-size
restriction, but this extra space is correctly painted with the
background color. It seems to me like some issue with the order of the
initialization sequence.

Nevertheless, I believe this is mostly irrelevant for 24.4 as the
multiple-of-char-size restriction would be no more binding.