E1465 Refactoring UsersController 

Hi Andrew,
We have made the following changes
1) Change list method to index(and similar for other RESTful methods)
2) Used string interpolation instead of concateation
3) Use of routing helpers
4) Reducing the number of instance variables to one per method

Files Changed:
users_controller.rb
_pagination.html.erb
edit.html.erb
new.html.erb
show.html.erb
routes.rb
users_controller_test.rb