whitespace changes in mxmapi.js

in simplifiedREquest, adding methods for overriding headers and backed ip
in config-loader, printing the list of files used for routing
in main.js added
--- generateProxiedRequestHeaders function on the request object
--- in the tokenobject added headers, user, guid, and using correct backend
--- in sendResponse and sendErrorResponse, added the application.headers (BUG FIXES)