Project: duracloud
Issue DURACLOUD-568: Multi-space property editing:  User should be alerted if they are trying to update one or more readonly spaces.
Suppose a user is looking at a list of four spaces and suppose he has write access to only three of them. Currently the set of editable tags and properties is gathered from all selected spaces regardless of whether the user has write access. Similarly if a user tries to add properties or tags to a selected space to which he has only read only access, the system won't handle it very beautifully. The ideal solution would be to disallow selection of unwritable spaces.
Story points: 2