Using kill on image doesn't end running meh process

[fmazur]

Steps to reproduce:

1. Open any file with meh imageFile
2. Use kill on the opened image (in this case i3wm shortcut for killing the window).
   
3. Verify in separate terminal session that process still exists: pgrep meh

Pressing q on the active opened image closes process properly.

Strangely xprop doesn't register any unique details on opened images:
(attaching this because it might be the reason why kill command cannot end running process due to missing pid?)

_NET_WM_DESKTOP(CARDINAL) = 1
_NET_WM_STATE(ATOM) = 
WM_STATE(WM_STATE):
		window state: Normal
		icon window: 0x0
WM_NORMAL_HINTS(WM_SIZE_HINTS):

[fmazur]

Didn't notice the solution awaiting merge: #16