Change user_controller permissions to read/write only

Fix previous commit with accidental permissions changed to executable for user_controller
Merge pull request #106 from spring-peepers-2014/fix/user_controller_file_permissions

Change user_controller permissions to read/write only
Changed permissions to 644 for helpers/application_helper.rb
Merge pull request #107 from nealfennimore/fix/application_helper_permissions

Changed permissions to 644 for helpers/application_helper.rb
Changed permissions to 644 for all files in views/users
Merge pull request #108 from nealfennimore/fix/file_permissions_user_views

Changed permissions to 644 for all files in views/users
Modify gitignore to allow bin/ and config/secrets.yml

Previous gitignore taken from Rails 3 project, Rails 4 needs bin/ to execute
Add bin/ to execute Rails 4

bin/ excluded from initial commit due to .gitignore copied from Rails 3 project