travis ci support

Hi Klacke, some build updates to support autobuild using public travis ci.  Look at the top of the readme.md file you'll see a link to the build status on travis.  you'll need to goto travis-ci.org and link your github account so that you can auto build on commit, this is a trivial thing to do.  then update the link in the readme.md to point to your travis account rather than mine.

summary of changes:

extend build system, to auto run the unit tests in the jnc directory.  

add a travis yml file so that travis ci can auto build the project. 

move readme to markdown so build status can be automatically reported on github page.