Log Message:
update to Enlightenment-0.16.7.1

Based upon PR 26768 by Peter Bex (update to 0.16.7) with fixes/clean-up
by me.

--- 0.16.7.1 1 ---
Remove empty epp/config.h causing trouble on some platforms.
Add basic _NET_WM_WINDOW_OPACITY handling.

--- 0.16.7.1 0.05 ---
Fix button grabs not being released.
- Thanks again to Onur Kucuk <onur@delipenguen.net> for finding a way to
  reproduce this.
Fix normal border when fullscreen at startup.

--- 0.16.7.1 0.04 ---
Fix window placement at (re)start (don't follow transients to leader).
- Many thanks to Onur Kucuk <onur@delipenguen.net> for help to track this one
  down.
Use png (not ppm) for image chaching, avoid some code duplication.
Debian build updates by Julien Portalier <trash@portalier.com>.
Hide menus when switching desktop.

0.16.7
-------------------------------------------------------------------------------
Bye bye Imlib1 and Fnlib.
Remove unused clone stuff.
Tidy up a bit (removed ancient ChangeLog's and other obsolete stuff).
Fix incorrect menu placement (still not ok if deskslide is active).
Valgrindings.
Fix nastiness when there are more than 16 windows on one desk at startup.
Fix desktop background thumbnail caching.
Fix some initial desktop setup.
Fix random killing when closing iconbox.
Attempt to do something about the Restart Placement Bug.
Enable showing some grab info.
Fix segv in "Advanced Settings" dialog when dialog headers are enabled.
Enable showing some menu info for debug (+tidy up some menu state stuff).
Debug for tracking area and desktop changes.
Debug commands to set/unset pointer grabs.