[StartUp]Creating/Loading users into MCT from the command line

This pull-request addresses issue #127.

This pull-request, along with pull-request #202 allows the MCT-user to create/load users via the command-line
by
<UL>
 <LI> Running MCT via the ant-script (as referenced in issue #127) at platform-assembly/target/tmp.dir/mct-platform-1.8b3
 <LI> Running MCT via the startup .jar file (found in platform-assembly/target/tmp.dir/mct-platform-1.8b3). E.g.:
          <UL>
             <LI> <code>java -jar startup-1.8b3.jar</code> to create/load the default user ''testUser1'
              <LI> <code>java -Dmct.user=hmarsh -jar startup-1.8b3.jar</code> to create/load user 'hmarsh'
           </UL>
</UL>

Wrote or re-wrote unit tests (Y/N): N
 Ran entire suite of unit tests successfully (Y/N): Y
 Verified bug fix with the described replication steps or verified the implementation meets the requirement cited (Y/N): Y
 Code coverage requirements satisfied (new code=80%, changed code=at least as high as existing) (Y/N): Y
 Code review date and attendees: code review by pull-request
 Describe potential impact on other areas of the code:  none
 Describe any test prerequisites for this fix (e.g., restart the database): none
 For bugs marked "Regression - Yes", describe the cause of the regression: N/A
 Did you modify any pom.xml file? If yes, did you thoroughly document your changes and reasons? N