Add missing #include <QIcon> to XfitMan and make the #includes more compatible with future Qt versions.
Use bit-fields in XfitMan WindowAllowedActions and WindowState.
Add XfitMan::getShowingDesktop() and XfitMan::setShowingDesktop().
Add new method XfitMan::setIconGeometry().
Add new XfitMan API: getWMState() to retrieve ICCCM WM_STATE value. Make moveToDesktop() work even when the window is withdrawn.
Merge pull request #621 from Razor-qt/pcman-patches

Merged some original LXQt patches