Pontoon: Update Greek (el) localization of Thimble
Pontoon: Update Greek (el) localization of Thimble

Localization authors:
- Jim Spentzos <jamesspentzos@hotmail.com>

humphd/thimble.mozilla.org,humphd/thimble.mozilla.org,humphd/thimble.mozilla.org,humphd/thimble.mozilla.org,mozilla/thimble.mozilla.org,mozilla/thimble.mozilla.org,mozilla/thimble.mozilla.org,mozilla/thimble.mozilla.org