Full-account synchronization should never fetch the contents of a folder
if its eTag did not change
Bump app version to 1.6.1
Bump workaround app version to 1.0.19
Merge pull request #675 from owncloud/hotfix_full_sync_ignoring_etag

HOTFIX - Full-account synchronization should never fetch the contents of a folder...
Merge branch 'master' into develop