Prevent static variable '$argNumber' from being reset between test cases

Previously the static variable was reset to its initial value for each
test case due to process-isolation being set to "true". Now the variable
is correctly incremented however must be re-initialized at start of each
test to prevent the variable to carry over to the next bridge.

lib/Tests.php

@@ -38,7 +38,8 @@ abstract class BridgeTest extends PHPUnit_Framework_TestCase {
         PHPUnit_Framework_Error_Notice::$enabled = FALSE;
 
 		ini_set('default_socket_timeout', 30);
-
+		
+		BridgeTest::$argNumber = 0;
     }
     
     public function setUp() {

tests/phpunit.xml

@@ -4,7 +4,7 @@
 
 		colors="true"
 		bootstrap="../lib/Tests.php"
-		processIsolation="true"
+		processIsolation="false"
         timeoutForSmallTests="1"
         timeoutForMediumTests="1"
         timeoutForLargeTests="6" >