Merge pull request #595 from wallabag/dev

wallabag 1.6.0
Merge pull request #634 from wallabag/dev

1.6.1
Added PHPePub
Merge pull request #712 from wallabag/dev

1.7, call me "Premium version"
Merge pull request #724 from Draky50110/dev

typo FR
Merge remote-tracking branch 'upstream/master' into dev
Merge remote-tracking branch 'upstream/dev' into dev