[bug 1025925] Change test module file names

Changed the names of two test module files to match the utils.py convention
[bug 1041703] Drop prodchan column

It doesn't work right and we're not using it, so let's ditch it now.
Merge pull request #358 from willkg/drop-prodchan

[bug 1041703] Drop prodchan column
[bug 1079376] Add error-email -> response admin view

This adds an admin view that lets me add feedback that errored out when
it was posting to Input by relevant part of the copy-and-pasting the
error email. This is a stopgap until Input has 5 9s.
Merge pull request #359 from willkg/1079376-response-page

[bug 1079376] Add error-email -> response admin view
Redo the peep --no-use-wheel fix

pip 1.4 through 1.5.6 don't upgrade wheels correctly. I fixed our peep
version so that it handles this by not using wheels, but that fix
doesn't work with versions of pip prior to 1.5.

This fixes that by adding some pip version checking. It also centralizes
the fix into one place and documents it better.
Merge pull request #360 from willkg/peep-no-wheel-fix

Redo the peep --no-use-wheel fix
Rework Join this project! chapter

This makes it clearer what I need prospective contributors to do before
they can start working on bugs. Having this set of requirements before
hand should alleviate some of the flux I'm seeing with assigning people
bugs and then they disappear.
Merge branch 'master' of https://github.com/mozilla/fjord