* Use ecore_plugin instead of dlfcn

 * Use ecore_plugin instead of dlfcn
 * the modules names are now "xine" and "gstreamer" (it's useless to add
   the extension, as ecore_plugin do not need it). I'll fix eclair,
   etk_extra and ewl.
 * look for the modules in path that is pointed by the env variable
    EMOTION_MODULES_DIR first.
 * fix a leak in the gstreamer module
 * remove some trailing spaces

git-svn-id: http://svn.enlightenment.org/svn/e/trunk/e17/libs/emotion@32261 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33