Fix history goof on first card

When we "change" to the first card, we don't want to adjust
window.history since it has an entry for the first card already.
[bug 1093832] Move feedback url documentation

* adds feedback url documentation to the Fjord docs
* also changes "organic" to be "anything that doesn't have a campaign"
Abstract out python2.6 in deploy script
Fix compile-linted-mo.sh to take pythonbin as arg
Add celery health check

* tweak the celery settings admin view to have a health check button
* the health check button kicks off a task that emails admin with some
  celery health details
Add space before subject of celery health email

The subject gets appended to something like [input-stage] which has no
space, so it looks weird without a space.
[heartbeat] Add experiment1 static page placeholders
[heartbeat] Add experiment1 static files
[heartbeat] Add SUMO links to sad page
[heartbeat] Add twitter thing to happy page
[heartbeat] Change thank you text
[heartbeat] Remove cruft, fix links
[heartbeat] Fix "addons"
[heartbeat] Show profile_age always because 0 is valid
[bug 1099138] Fix "back to picker" url
Add note about "Commit to VCS" in l10n docs
Heartbeat: instrument email signup, feedback, NOT Twitter

- twitter is in iframe, so clicks do not bubble
Merge pull request #399 from gregglind/heartbeat-annotate

Heartbeat: instrument email signup, feedback, NOT Twitter
[heartbeat] Fix DOCTYPE and ispell pass
[heartbeat] Change Thank you text