Adding phing via composer and providing a default task that runs phpunit and generates a coverage report in /build artifact folder.
Merge branch 'master' into experimental/phpdocumentor

* master:
  Adding phing via composer and providing a default task that runs phpunit and generates a coverage report in /build artifact folder.

Conflicts:
	.gitignore
	composer.json
	composer.lock
	vendor/autoload.php
	vendor/composer/autoload_classmap.php
	vendor/composer/autoload_real.php
Adding phing phpdocumentor target