Add blueprint theme for Fx Developer Edition pages
Bug 1092180
Update channel page with Developer Edition
Bug 1088229
Add blueprint theme to non-responsive LESS files
Bug 1092180
Update download button for dev edition
Bug 1071316
Add "Developer Edition" link to Fx top nav. Bug 1088190.

- Add Fx top nav to firefox/android. Bug 1073237.
Add new Firefox Developer Edition landing page
Bug 1071922
[fix bug 1085703] Implement Developer browser firstrun page
Build out layout/style for Dev browser firstrun
Bug 1085703
Defer loading iframe content until user triggers the modal
Add UITour JS logic for dev firstrun
Add doorhanger icons and update UITour logic
Update firstrun view logic for dev browser
Update /tour view logic for dev fristrun
Update highlight targets for dev build
Do not re-show the final tour step
Standardize icon naming convention
Add GA tracking and links for Dev browser firstrun
Bug 1088285 & Bug 1071922
Show dev-firstrun template for whatsnew 35.0a2
Fix naming of template tests
Add valence screenshot to firstrun page
Bug 1085703