Step1: Create controllers templates, and create controller generator to copy ALL templates to rails app directory
user erb template to generate controllers, enable  --controllers option to specify controllers, make 'scope' argument required
add better help description
Return Symbol in find_scope! if String passed
enable empty scope when generating a controller
add test for controllers generator
update description message in the controllers generator
print README instruction after running controller generator
add instruction in the README file for controllers generator. This readme will be printed when user invoke devise:install
fix code example shown in README user will see after running generator
Update Simple Form templates for 3.3.0
Merge pull request #3175 from aried3r/update_simple_form_templates

Update Simple Form templates for 3.3.0
Add changelog for #3175 [ci skip]
Change the 'postgresql?' check to not connect to the database.

Closes #3181
comment out all stubs
refactor code, use a constant insead of a class variable
make scope required
move controller generator info from lib/generators/templates/README to README
add *_path_for stubs in all controllers
fix typo: 'new' action should be 'create' action