Fix for #70. Don't render detail view after fetch if it has been removed.
Added comments
Protect another potentially invalid render() call.
Merge pull request #71 from ox-it/fix-issue-70

Fix for #70. Don't render detail view after fetch if it has been removed...
Added some logging and simplified embedding instructions page to narrow down zoom issue.
Merge branch 'investigate-issue-73' into gh-pages