Config module now supports loading multiple files
Each new file will be merges with existing config allowing you to create cascading defaults
Updated engineVars and privateVars for new config feature allowing better defaults
(engineVars needs a little cleanup, but works as is)
Updated enginePrivate config file for new config format.
All this means is removing the global variable as the config module now indexes all vars and dosen't need this global
Merge pull request #11 from wvulibraries/routerOpenFile

Improvements to config module