User is able to attach a tag even though permission is not given to him
A user is not given 'Attach tags to documents' permission in the role, but only a 'View tags' permission. But still he is able to attach any tag which he can view to a document.
Also would it not be nice to have the 'Attach tags to documents' permission in the Tag ACLs rather than the Role permissions in order to give only particular users to attach a particular tag to a document.
This is for latest development branch.