Work on participants page description
Remove association to campaigns
Remove gmaps4rails methods; refactor mappable scope
Remove channels association from Campaign (since only the required_action_id is being set on the campaign - not the channel); create channels collection method
Remove the campaigns association from channel (since channel_id is no longer being set - only the required_action_id)
Don't clear channels from campaign since the association no longer exists
Refactor user reach calculation
Group required actions by campaign
Remove flash alerts from sign in page since they already exist in the layout
Add score to user header
Add custom error pages
Tweak custom error pages
Tweak custom error pages
Don't overwrite user email addresses when connecting accounts