Correcting program urls and enhancing call to action:
org urls, program urls, and local urls were getting conflated
programs now have url (coming from openbadger) and localUrl (the CSOL-site url)
program detail pages display an email, program url link, or phone number
  depending on available data
Fix tests: url -> localUrl for programs
Merge pull request #658 from stenington/572-program-cta

Better program detail call to action and bug fixes
Removing legacy template `user` objects
Adding 'search' to `/earn` and `/explore` filters

Resolves #616
Fixing `getBadges` test to allow for `search`
Merge pull request #663 from andrewhayward/search

Adding 'search' to `/earn` and `/explore` filters
Merge pull request #662 from andrewhayward/tweaks

Removing legacy template `user` objects
Merge remote-tracking branch 'origin/master' into adds-social-and-iremix
adds search bar, and other nice things. includes the sharing and STEAM / iremix stuff that can't go to prod yet. staging only.