Fixed sorting arrows
Added Ajax user search to dare new
Added msg if users not found to user search
Added challenge button to seaerch results
Fixed error views when challenging others
Added case-insensitive search with autocompl for challenging other users
Added email to search boc
Moved autocomplete to seperate method in user controller (should refactor), fixed variable render in flash msg
Adding collapsibles to dare new
Fixed collapsible select user
Added panel with users with most failed cha
Refactored choosing users to chal