Add Devise email confirmation to Member class
Add role to shows and show_templates
can_be_scheduled now takes a Show's group into account when assigning members

Will avoid scheduling US Members on US shows
Will avoid scheduling ISP Members on ISP shows
Testing green
add rake tasks for members:import and members:export
Modify Member controller/view so only active members are shown unless admin
Environment variables now live in config/app_environment_variables.rb