100% unit tests for Vkontakte, Instagram, Eventbrite, Microsoft
Corrected magic getters and setters, removed unused iterator and provide fluent interface:
Added missing RefreshToken
Merge branch 'master' into psr-4

Conflicts:
	src/Provider/Microsoft.php
	test/src/Provider/MicrosoftTest.php
100% code coverage
Added whitelist so that running global phpunit doesn't affect code coverage

On my local system stuff from /usr/local/php was being included
Re-added .travis.yml
Removed 5.3 testing
Update README.md