Make kde4-window-decorator work again.

Fix configure.ac(kde4libs variable)
Import kdecorationbridge.h from lp:compiz(revision 3874)
Add quickTileMode to window.cpp, window.h

More:
http://lists.freedesktop.org/archives/compiz/2013-March/003479.html
Revisions 3853, 3745 of lp:compiz