Slightly improved ServerScreen::SupportsResolution
Implemented a DPMS hack for ViewDriver and DirectDriver
Moved various supporting classes from DisplayDriver.cpp to DisplaySupport.cpp
Added server-side support for BWindow::SetSizeLimits
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8541 a95241bf-73f2-0310-859d-f6bbb57e9c96