Copy example S3 config for CI
Make GuidePdfFlowTask work under CI
Fix some of the failing specs for users_helper

* Remove unused partial users/user_bar
* Remove unused methods from users_helper
* Remove failing specs for unused methods
Fix spec for link_to_user

* No longer raises an error for nil User
Add rspec-html-matchers to fix have_tag specs
Adjust spec for user->people route change