update rails gem to 4.0
add bin executables
remove config.whiny_nils
add config.eager_load
remove config.active_record.mass_assignment_sanitizer
fxi routes, get/post instead of match
remove config.active_record.auto_explain_threshold_in_seconds
remove observers
new scope syntax
remove explicit call AR#all
use formtastic rails4 branch
use compass-rails rails4 branch
mv favicon.ico to app/assets/images/
use cucumber-rails master_rails4_test branch
make devise and strong_parameters work together
update jquery-rais and uglifier gems
new hash syntax for db/schema.rb
use turbolinks
update contact_us gem