(Airavata-1250) Adding a configuration php file and updating php clients to use it.
(Airavata-1250) Adding a configuration php file and updating php clients to use it.
Merge branch 'master' of https://github.com/SciGaP/Airavata-PHP-Client-Samples

Conflicts:
	client-samples/airavata-client-api-tester.php