update gems for rails 4
add deprecated gem help
various config updates
various config updates
use bourbon instead of compass, remove public_activity (not ready)
add send_reminders rake task
update gems, remove more public_activity calls
make all email events less resource intensive for delayed_job
add time to signup in event lists
update gems
add twilio gem
merge with develop
remove protected_attributes gem, general updates for rails 4
fix errors in tests
use zeus instead of spork
remove comment
Merge branch 'feature/rails4' into develop