Fixed TestHttpServer portRangeTest to use min to max inclusive for port range

When generating a random port in HttpServer, it generates a value between MinPort and MaxPort inclusive.  The portRangeTest only checks that the generated port is between MinPort and MaxPort exclusive, which causes a test failure when the randomly generated port is equal to the value of MaxPort.
You're right, it looks like the Min Port is inclusive as well.  I'll modify the test case to include port 1000.