Include ShareRoom URL in templates, using .browse_url.

Apparently myShareRoom models lack .browse_url - need to rectify that, next.
Merge branch 'master' into issue-443-url-in-share-details
Merge pull request #452 from SpiderOak/issue-443-url-in-share-details

Issue 443: Include url in ShareRoom details
Merge branch 'master' into issue-374-type-and-path-migration