#50 maximize button (Fullscreen maximized)

[Christian Quast]

baghira is displaying the maximize button in the
top right corner of the screen if the 'Fullscreen
maximized' option is enabled. Since I removed all
'deco' buttons besides the 'close window' button
from the title bar, I'd like baghira to honor these
settings by only displaying the maximize button if it
is part of the title bar in the first place (btw. I use
shortcuts for about all window manager related
functions so the maximize button is somewhat
superfluously).

Chriss