Translations
Remove cucumber from dashboard.
This file needs to stay so that tests still work.
Merge pull request #305 from code-dot-org/removecucumber

Remove cucumber from dashboard.
Fix learn.code.org on firefox.
Merge branch 'master' of https://github.com/code-dot-org/dashboard
new add2home source
[Finishes 66032020]: mobile sharing page
[Finishes 66032020]: mobile sharing page
Merge pull request #306 from nanan9177/feedback_collect

Showing gathered hints.
Merge pull request #307 from code-dot-org/mobile_share_features

Mobile share features
Fix print certificates link for Firefox & IE11.  They need the form to be in the DOM, not just in a jquery call.
Merge pull request #308 from code-dot-org/printcerts

Fix print certificates link for Firefox & IE11.
Added the capability of showing gathered hints to students.