Link to receipt for manual charges

I was asked to manually charge Heroku $5,000.00, to make their
accounting easier than having smaller charges hit every week. They need
the receipt, of course.
Bump version to 8.5.8
Bump version to 8.5.8-dev
Don't line wrap elapsed time, issue #976

The problem that was seen was reporting a user less
than one minute old. In addition to avoiding a line
break, this commit promotes "xx seconds" to be "1 minute".
Merge pull request #1000 from gittip/fix-gh976-2

Don't line wrap elapsed time, issue #976
Bump version to 8.5.9
Bump version to 8.5.9-dev
Back out tip hard sell; #489

This is causing difficulties for new developers and isn't getting us
more credit cards. It's too desparate and forceful. That's not the
Gittip way.
Bump version to 8.5.10
Bump version to 8.5.10-dev
Implement The Horn; #7 #145

This is an implementation of communication between people on the site.
Bump version to 9.0.0
Bump version to 9.0.0-dev
Tweak prompt for tooting other's horn; #7

Try to steer people towards addressing others directly. So far the
couple I've seen are addressed in the third person.
Bump version to 9.0.1
Bump version to 9.0.1-dev
Clear textarea after successfully tooting (#1008)
Add meta description tag to index page.
Add link to source code to the footer
Merge pull request #1014 from buttscicles/footer

Yes! Thank you!