[297] Gave permission to rodsadmin and groupadmin to modify metadata …

[connectbo]

@trel Alright I've got something for your review. This pr includes the following changes

• admins (rodsadmin and groupadmin) are able to modify the template, or set it as public/private if needed (not sure if we should allow this), and metalnx will also display the template owner in the tooltip

• changed read-only template form fields to be 'disabled', so it's not only greyed out but also can't be edited

So in short, admins are allowed to view/edit/apply all public templates and set templates as private but can't view or edit any private templates. Users are able to view/apply all public templates and edit their own templates.

Does that sound like something we can add to metalnx for now? Or we should wait till the next metadata template meeting?

[connectbo]

Just did some testing and cleaned up the code, think it's ready. Please review.

[trel]

fix the one comment, and then # it up. thanks!