Unnecessary parts of comments removed

There was old and outdated parts of commented code that is not relevant
anymore so I deleted them.
Changes for local environment

Some parameters must be changed to allow GrottoCenter to run on local
environment. I've made some changes to facilitate this.
This is not perfect anyway, I hope the new version will be better
regarding to this aspect! ;)
Fix for "NetworkError: 404 Not Found" during loading

This is a fix for some errors that was thrown loading the page:
"NetworkError: 404 Not Found -
http://www.grottocenter.org/scripts/lib/defs/WGS84.js"
"NetworkError: 404 NOT FOUND -
http://spatialreference.org/ref//WGS84/proj4js/"
"TypeError: callback is not a function"