Update browser_helper.rb and warn for old Firefox and Safari
Use 'browser' gem for detection instead of custom regex
Update activity-monitor to use gem 'browser' instead of 'user_agent_parser'
Fix activity-monitor and lib/cdo extension
Better RBENV instructions

things kind of working, with hackery

clean things up a little
more cleanup
Add free play links to header
Tweak icon metrics
Checkpoint
Free play links for student dashboard
code review
Code review feedback
consolidate steps
Add hand cursor again to video play button.
Fix padding on employee engagement landing page.
Merge branch 'staging' of github.com:code-dot-org/code-dot-org into staging
Merge branch 'test' into staging
localize new hourofcode.com strings
Add unit tests for free play link helper
update default language for countries