v1.2.2

throw out php 5.3 dependency

v1.2.1

PHP7

v1.2.0: Merge pull request #1 from AppsDevTeam/feature-new-functions

refactoring
new functions 
- contactDeleteByEmail()
- getAllUnsubscribedContacts()
- multipleContactsInsert()

v1.1

Version 1.1

v1.0

readme fix