- Fix calculation of the maximum data size (it previously calculated 65519 (0xFFFF...

 - Fix calculation of the maximum data size (it previously calculated 65519 (0xFFFF - sizeof(ICMPv4Header) - sizeof(LARGE_INTEGER)) which was wrong because the real maximum was 65499  (0xFFFF - sizeof(IPv4Header) - sizeof(ICMPv4Header) - sizeof(LARGE_INTEGER)))
 - Implement -f and -i options
 - Note: This raises our max ping data size to 65507 (0xFFFF - sizeof(IPv4Header) - sizeof(ICMPv4Header)) so we match linux's (iputils) ping max size but Windows' max is 65500 and I'm not sure if we should change our code to match Windows or not

svn path=/branches/aicom-network-branch/; revision=45129