Log Message:
Update to 0.13.0:

* Fix for #344070, changed how the update is done to avoid bad blocks generated
  during this process.

* Fix for #343689, adding contrast support to gnome-mag.

Translations
	* Sayamindu Dasgupta (bn_IN), Dominique PELLE (eo),
	Rahul Bhalerao (mr), rajeev shrestha (ne) and Abel Cheung (zh_HK)