meta-efl: upgrade efl to 1.7.6, e-wm to 0.17.2, terminology to 0.3.0

* announcements:
  http://www.mail-archive.com/enlightenment-devel@lists.sourceforge.net/msg52198.html
  http://www.mail-archive.com/enlightenment-devel@lists.sourceforge.net/msg51986.html