Add Node.js command line options +

Add -v and -vwfPath option to specify VWF support file location
Add -s flag as an option for running Node server in ssl mode
Change order of default VWF support file location
Refactor and cleanup node server logging

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Tests:  (Includes testing of http://redmine.virtualworldframework.com/issues/3104)

cd VWF working directory
  $ node node-server.js 
  $ node node-server.js -v ./public
  $ node node-server.js --vwfPath ./public
  $ node node-server.js -v ./not-a-dir

cd vwf-working-dir/public
  $ node ../node-server.js -v ../

  $ node ../node-server.js *(FAILS: "Could not find VWF support files")*
  $ node ../node-server.js -v ./not-a-dir  *(FAILS: "Could not find VWF support files")*