* Added deployment of Version file to /p4/Version. A future
upgrade_sdp.sh in the next SDP release will make use of this.
* Accounted for directory structucre change of Maintenancd to Unsupported.
* Added standard command line procssing with '-h' and '-man' doc flags,
and other flags (all documented).
* Added in-code docs and updated AsciiDoc.
* Enhanced preflight testing, and fixed '-test' mode installs.
* Added support for installing to an alternate root directory.
* Added check for /p4/Version file, and checked that other legacy
SDP methods of checking version
* Added sanity check for crontab.
* Added 'test skip' mechanism to skip certain tests:
- and license
* Adusted test suite to account for various changes in mkdirs.sh.
* Added 'dir' parameter to run_cmd() and sudo_cmd(), to run a command from
a specified directory (as required to test new mkdirs.sh)
* Added check_links() similar to existing check_dirs() function.