Updating compiled CSS with new admin icons and comments styles
Add routes for new XHR endpoints
Add rate and comment endpoints to allow for XHR requests on talk page or talk list page
Restructure talk view page and add comments section
Add talk meta entity to track talk related information (rating and viewed)

Conflicts:
	classes/OpenCFP/Entity/Talk.php
	web/assets/scss/site.scss
Merge branch 'master' of https://github.com/DallasPHP/opencfp