just a start on the phing  task #41
first attempt at phing test task that runs phpunit
updates phing to dev-master, phpunit to 4.1
fix whitespace
Execute PHPUnit with ExecTask
Use PHPUnit from vendor
minor clarifications in README
Merge branch 'jeffswartz-v2.2-docs' into modernization
archivng sample walkthrough, readme fixes, license file
fixing releases link
Merge branch 'modernization' into add-phing
Merge branch 'add-phing' of https://github.com/rskuipers/Opentok-PHP-SDK into rskuipers-add-phing
removes hello task
Merge branch 'rskuipers-add-phing' into add-phing
adds development and contribution guidelines
update travis badge
Update to version 2.2.0
Begin development on next version
Update PHP Server SDK docs to have a relay mode by default.
updates ua string fixture in tests -> v2.2.1-alpha.1. fixes #53

also fixes a small spelling mistake in the name of a method