Update check_TomcatApplication.sh

as per comments on nagios exchange 

Nice update
byjesuslopez, November 13, 2013
Thanks for posting an updated version of the plug-in the additional metrics are good. I did note a couple of minor corrections for your consideration.

The current usage string incorrectly indicates lower case -h for host:
echo "$PROGNAME -u user -p password -h host -P port -a application"

Also, the output shows memory in units of MB, but is really bytes:
This should either be divided by 1024^2 or change units to B.

Thanks again.