starting in on updating our maven build process

[Marshall Schor <ms...@schor.com>]

This task has lots of parts; I plan to do the work in a branch.  I put
the various parts into a Jira Task with subtasks.

Questions / Comments / discussion on improving things beyond this
attempt are welcome :-).

Overall goal: when it's finished, we should be able to check out a
project and do mvn install to build it , and mvn site to build its
documentation. 

-Marshall