Bumped required version of PHP to >= 5.3.4
Bumped required version of PHP to >= 5.3.4

reactphp/event-loop,mkrauser/event-loop,kaduev13/event-loop,steverhoades/event-loop,kaduev13/event-loop,mkrauser/event-loop,clue-labs/event-loop,steverhoades/event-loop