adds new tables, updates UI
fix search
ability to approve opportunities, bulk and single actions for doing so
add icon to admin section
Merge branch 'master' into majors_and_minors_on_profile

Conflicts:
	app/views/profiles/registrations/_personal_info.html.erb
ability to approve opportunities, bulk and single actions for doing so
add icon to admin section
Merge branch 'opportunity_approval' of github.com:ucsd-ra/ug_research_portal into opportunity_approval
Merge pull request #63 from ucsd-ra/opportunity_approval

Opportunity approval