* Added comments about proper use of DB1/DB2.
* Added comment about coming removal of P4FTP/P4WEB settings.
In mkdirs.sh v4.1.1:
* Replaced -M with set of -M* flags to specify mount points.
* Completed implementation of -M* flags.
* Enhanced examples in usage function.
* Added clarification of difference between '-n' and '-p'.
* Fixed some typos.