add ask question modal on specialties page
update terms copy and improve when responsive
add favicon & mobile icons, disable zoom for mobile devices
tidy routes
add asset path to favicon & mobile icons
Merge remote-tracking branch 'origin/master'
improve styling of textarea on the iphone
improve styling of inline notifications when responsive
improve login form when responsive
Adds comment model and relations to video and user models. Bare tests and controller added.
fixes tests
Extends comment model tests and adds presence validations to make them pass.
Comment display implemented.
Comment submitting implemented. Works via ajax, comments not yet rendered.
improve dashboard layout for line chart & pie charts
add retina images for tab icons
hide line chart on dashboard below 720px
remove comment reply function from site.js
add edit profile page
remove retina.js