APT_MAX_TRANSPORT_BLOCK_SIZE and APT_MIN_TRANSPORT_BLOCK_SIZE

Set the APT_MAX_TRANSPORT_BLOCK_SIZE and APT_MIN_TRANSPORT_BLOCK_SIZE environment variables to specify the minimum and maximum allowable block size for transferring data between players.

APT_MIN_TRANSPORT_BLOCK_SIZE cannot be less than 8192 which is its default value. APT_MAX_TRANSPORT_BLOCK_SIZE cannot be greater than 1048576 which is its default value. These variables are only meaningful when used in combination with APT_LATENCY_COEFFICIENT.