Implement public share rooms collection update of save records when a
public share room's "remember" status is changed.
Implement the share room actions pop-up menu, plus the details view for
public share rooms.

I've done this in a modular way, so it can be used for both "my" and public
share rooms.  The implementation for public share rooms is nearly complete.

Move FilesView.js before ShareRoomsViews.js, so stuff from the former can
be used in the latter.

Add a template for public share room details.

Also, include the name of the public share room icon as a model attribute,
for reference in the template.

(Incidentally, rearrange the tests templates list to mirror the list in the
main index.)
Refine share rooms longpress menu and details view to distinguish properly
between public and my share rooms.
Implement share room send-link action and add important details to the
details views.
Merge pull request #195 from SpiderOak/issue-140-sharerooms-longpress-menu

Issue 140 sharerooms longpress menu