Relationships

1) add view RelationshipsController specs
2) add Relationship model, specs
3) add validation on relationship to be unique
4) add user socializes spec - following, unfollowing

Please, approve.
The difference between those two lines is that the subject (response) is implicit in the second one, so `should` is being called on `response` automatically.

Here is the 2.99 docs, you can do the same:
https://www.relishapp.com/rspec/rspec-core/v/2-99/docs/subject/one-liner-syntax

Don't worry about changing all of your shoulda matchers, I just wanted you to be aware of the preferred syntax :smile: