Function to handle notification from openbadger that a badge claim has been issued.

Very rough functional version.
Improvements to email template selection.
Merge branch 'master' of https://github.com/mozilla/CSOL-site
Removing duplicate error logging.
Dashboard fixes
simplified logic to use default
added mentors link to footer. fixes #480
added organizations link to footer. fixes #479
modified sample claim code to match style of actual claim codes. fixes #496
changed My Playlist to Playlist in My CSOL dropdown. fixes #300
paragraph at bottom of page now has "lead" class. fixes #297
added rubric to badge apply page prior to first form. fixes #508
added requirements to badge detail page. fixes #518
white-space pre-wrap added to badge and program descriptions. fixes #363
Implement filtering.

This takes advantage of the fact that OpenBadger will have filtering
at the API level once mozilla/openbadger#209 lands.
Merge pull request #517 from curlee/master

more 1.0 ticket closings... and beyond
Merge pull request #507 from mgballard/master

footer adjustments, logo links, and font size increase
Merge pull request #391 from christensenep/128-badge-issue-email

Send badge issue notification emails
Figured out how to make the tests pass.
small offline approved copychange