Merge pull request nextcloud#509 from nextcloud/release-0.7.3 Release 0.7.3

Merge pull request nextcloud#511 from nextcloud/refactoring/cleanup-u… …nused-controller-methods Cleanup unused controller methods

Update changelog for 0.7.2 Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Update changelog for 0.7.2 Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Merge pull request nextcloud#477 from nextcloud/release-0.7.1 Release 0.7.1

Merge pull request nextcloud#477 from nextcloud/release-0.7.1 Release 0.7.1

Merge pull request nextcloud#477 from nextcloud/release-0.7.1 Release 0.7.1

Merge pull request nextcloud#421 from nextcloud/release-0.7 Release 0.7

Merge pull request nextcloud#413 from nextcloud/refactor/background-sync Fix background synchronization

Merge pull request nextcloud#390 from nextcloud/fix/add-new-account Fix adding a new account