change application config - not to generate assets, helper
run devise:install
generate devise User
generate rolify:role
config role ability
generate model Blog
config to use strong_parameters
install active-admin
use cancan adapter
generate Home controller
delete default index.html
modify active_admin.rb
generate active_admin resource blog
delete default index.html
add resource users to active admin
add ability
config route for active admin
implement authenticate_admin_user! for testing
change active admin setting
re-implement authenticate_active_admin_user!
fix wrong path name
fix wrong method name
make active admin user resource work with strong_parameters
change home index to able to sign_in sign_out