[test] removed unnecessary require_once for Phake
[bin] removed an unnecessary require_once for Stagehand\TestRunner\Core\Bootstrap (Issue #38)
[Core] removed Bootstrap::configureClassLoader() and Bootstrap::$namespaces (Issue #38)
[test] changed code to work only with Composer
[test] removed TestEnvironment
[Eclipse] removed PHPUnit, Phake, and the system include path from the PHP libraries and PHP include path
[Core] removed Environment::isProduction()
[Core] changed Environment::initialize() to be public static
[Core][bin] removed the global variables for backwards compatibility $GLOBALS['STAGEHAND_TESTRUNNER_workingDirectoryAtStartup'] and $GLOBALS['STAGEHAND_TESTRUNNER_preloadScript']
[PEAR] removed build.xml and package.xml (Issue #38)