Logic fixes to window title setting.
Paste the selection in one hit.
window.{h,c}xx cleanups and comments.
Remove some const/capitalisation from window.cxx.
Rename Window::copy() to Window::copyPixmapToWindow().
Rename Window::draw() to Window::renderPixmap().
When copying the pixmap to the window, don't use _checked().
Implemented operator << for Action.
Use regular operator >> for reading Colors.
Use sentences in ENFORCE/ASSERT/xcb_request_failed/etc messages.
Cleanups.