adding .project to .gitignore
Squashed commit of the following:

    porting changes from Zend_Mobile

    - adding token validation
    - fixed minor phpdoc issues
    - fixed failing unit tests (getPayloadJson)
    - phpdoc cleanups
reverting changes to MessageClientTest
Merged #1, ran php-cs-fixer, fixed .travis.yml to put back accidential removal
Merge branch hotfix/1
Close #1