re-add hCard and h-card support
[fix bug 857289] Add NewRelic.
Merge pull request #454 from tantek/patch-6

re-add hCard and h-card support
Merge pull request #452 from glogiotatidis/newrelic

[fix bug 857289] Add NewRelic.
[fix bug 846039] Authorization routes for Profile View.

* Allow all users to visit public profiles.
* Allow all users visit own profile.
* Redirect anonymous and unvouched users when requesting private or non-existent profile
* Raise 404 when vouched user requests non-existent profile
Merge pull request #451 from glogiotatidis/routes

[fix bug 846039] Authorization routes for Profile View.