Update the mate desktop to 1.18.
- The MATE DE is now GTK+3 based
- mate-calc has come back.
- New USE_MATE=mixer macro
- Add license
- Review dependancies
- Swich to USES=localbase
- atril/eom options reworked into option helper
Thanks to Eric Turgeon for submitting the bulk of this MATE update.
Obtained from: gnome devel repo