fedora 17: enable minimize and maximize button on titlebar

an easy way to make the minimize and maximize button display in fedora 17 is to do it via gnome-tweak-tool

install gnome-tweak-tool

# yum install gnome-tweak-tool

launch gnome-tweak-tool

# gnome-tweak-tool

in the dialog, select Shell then set set Arrange of buttons on the titlebar to All

no more need to right-click on titlebar for minimize and maximize functions!