Change socializer_person.rb for socializer_people.rb
Using LET instead of building a new person for each test.
Validate avatar_provider
Merge pull request #137 from MartinGoulet/tests

Test refactoring and adding 2 new tests
Merge pull request #141 from MartinGoulet/master

Refactoring + Correction loading javascript
Naming consistency
Test refactoring