Changelog and version number
5.1 instead of 5.0.8
Merge pull request #129 from Yoast/5.0.8

Changelog and version number 5.1[#81471192]
Change support options in readme.txt for wordpress.org
Updates translations.
* Added Russian,
* updated Dutch and Finnish and
* renamed Greek to match the WP locale.
Updated .pot file
Updated translations.
Removed all languages with < 50% translated.
WIP
Make 'extensions' the main menu item in network admin
Ga premium image added
Merge branch 'trunk' into stories/pvw/gaimage
Updated image
Merge pull request #134 from Yoast/stories/PVW/gaimage

Added premium extension image
Moving admin functionality into it's own class
Merge pull request #133 from Yoast/stories/OR/multisite-bug

Make sure GA menu is also added to network admin [Finishes #82014956]
Merge branch 'trunk' into stories/PVW/api-libs

Conflicts:
	includes/class-autoload.php