meta-efl: upgrade efl to 1.7.7, e-wm to 0.17.3

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
evas: Add patch to fix segfaults

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
claws-plugins-*: Update SRC_URI

* modules are now in one bigger tarball on sourceforge
  http://sourceforge.net/projects/sylpheed-claws/files/extra%20plugins/
* old tarballs are still available in plugins_obsolete directory

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>