Improve support for Extended Window Manager Hints (EWMH).

Improve support for Extended Window Manager Hints (EWMH).

Add support for _NET_CURRENT DESKTOP.

Add support for _NET_DESKTOP_NAMES.

Add support for _NET_NUMBER_OF_DESKTOPS.

Add support for _NET_CLIENT_LIST.
Windows are sorted according to _NET_CLIENT_LIST at start.

Change iconify to use _NET_WM_STATE_HIDDEN instead of _SWM_ICONIC.

Add _NET_WM_FULL_PLACEMENT to _NET_SUPPORTED.

Improve handling of _NET_WM_STATE_FULLSCREEN.

Improve general handling of EWMH.

Fix focus issues when a window maps/unmaps on an unfocused region.

Fix calls to get property length that did not adjust for item size.

Fix stacking issues.

Fix segfault.

Disable swapwin on fullscreen layout.

Remove floating property from ws_win struct.

Add new macros for accessing ewmh_flags.

Initialize variables that should be initialized.

Fix some formatting.

Improve debug output.

Closes #1 and closes #20