version 1.4.0

Use icon from _NET_WM_ICON window property.
Code quality patch by @ykaliuta :
      gui: skip extra winlist initializations,
      gui, win: make selected window number local for gui,
      ewmh: fold window property calls,
      treewide: fix memory leaks,
      treewide: delete trailing whitespaces,
      treewide: make private stuff really private.
Automatic indent.
Support RANDR output without CRTCinfo.