refactor halls and admin panel
modify schedule
Hardcoded link fixed.
Tabs for conference schedule days added.
Return responsive design layouts.
Popovers layout added.
Replace 'for' loops to 'while' because wrong syntax.
add popovers
add time locales
add markdown for thesises
add offset to event break
add html rendering
Merge branch 'feature/178_add_time_slots' into develop

Conflicts:
	app/assets/javascripts/custom.js.coffee