[events] Add category & event model
[events] Category requires unique title and icon
[events] Add test for event model
[Users] Create table in DB
[events] An event need to be linked with a category
[UsersTests] model: create a user
[events] Create categories controller
[UsersTests] model: requirement data
[TestsDocumentation] add test title in logs
Merge pull request #2 from hack1337/test/addDocumentation

[TestsDocumentation] add test title in logs
Merge branch 'preprod' of github.com:hack1337/rails-twitter-like into feature/events
Merge branch 'preprod' of github.com:hack1337/rails-twitter-like into feature/users
[UsersTests] model: valide email type
[UsersTests] model: email is unique
[events] Change category model/controller to sport
[Users] create users controller
[UsersTests] controller: index swho create
[Users] resources for users route
[Users] send users infos in index
[Users] send user infos in show / by id