Allow using either of PHPUnit 3.7.* or PHPUnit 4.0.*

Author: Alexander Obuhovich

composer.json

@@ -18,7 +18,7 @@
 		"behat/mink-selenium2-driver": "~1.1@dev",
 		"symfony/event-dispatcher": "~2.4",
 		"pimple/pimple": "~2.0@dev",
-		"phpunit/phpunit": "~4.0"
+		"phpunit/phpunit": "~3.7|~4.0"
 	},
 
 	"require-dev": {

tests/aik099/PHPUnit/Integration/SuiteBuildingTest.php

@@ -105,7 +105,9 @@ protected function createTestSuite($class_name)
 		$suite->shouldReceive('run')->once()->andReturnNull();
 		$suite->shouldReceive('onTestSuiteEnded')->once()->andReturnNull();
 
-		$suite->shouldReceive('count')->once()->andReturn(1);
+		if ( version_compare(\PHPUnit_Runner_Version::id(), '4.0.0', '>=') ) {
+			$suite->shouldReceive('count')->once()->andReturn(1);
+		}
 
 		return $suite;
 	}