Added 'Godot Contributors' in project manager title

editor/project_manager.cpp

@@ -1228,7 +1228,7 @@ ProjectManager::ProjectManager() {
 	String cp;
 	cp.push_back(0xA9);
 	cp.push_back(0);
-	OS::get_singleton()->set_window_title(_MKSTR(VERSION_NAME) + String(" - ") + TTR("Project Manager") + " - " + cp + " 2008-2017 Juan Linietsky, Ariel Manzur.");
+	OS::get_singleton()->set_window_title(_MKSTR(VERSION_NAME) + String(" - ") + TTR("Project Manager") + " - " + cp + " 2008-2017 Juan Linietsky, Ariel Manzur & Godot Contributors");
 
 	HBoxContainer *top_hb = memnew(HBoxContainer);
 	vb->add_child(top_hb);