Initial import
Fix the awaiting issues thanks to the Mailin team API upgrade.
Update the Unit tests.
Add some usefull methods in MailinAPI and MailinResponse.
Improve the test suite.
Add methods and tests for user management.
Update the MailAPI class and related tests to support attributes related operations.
Create a separate file for the MailinTestHelper class.
Improve MailiAPI class and related tests.
Mark testDeleteAttributes test as incomplete, since it seems to have an issue with the related Mailin service.
Update the README file
Merge branch 'release/alpha-0.1'
Merge branch 'release/alpha-0.1' into develop
Update release number.
Merge branch 'release/alpha-0.2'