single search box similar to ask
removed MLT and added tag to search description
add MLT back to event model
added is_admin flag to leaner search
changed to single search for all users
show learners heading in index, but ask for login to view learner names and profiles
Layout tweaks
merged two learners views into one
Merge branch 'single_search_box' of github.com:extension/learn into single_search_box
Add column, methods, and script for Learner reindex by cron
Merge branch 'add_search_update_flag' into single_search_box

Conflicts:
	app/models/learner.rb
Missed making new value whitelisted
Merge branch 'add_search_update_flag' into single_search_box
Merge pull request #241 from extension/add_search_update_flag

Add search update flag
Merge branch 'master' into single_search_box
Merge branch 'single_search_box' of github.com:extension/learn into single_search_box
Merge branch 'single_search_box' of github.com:extension/learn into single_search_box
Merge branch 'single_search_box' of github.com:extension/learn into single_search_box
Merge branch 'single_search_box' of github.com:extension/learn into single_search_box
Fix titles and layouts