Error reporting / handling, and minor improvements

[larissar]

• Remove + sign beside users money in left navigation and in user dropdown. Link was invalid and trowing errors in javascript
• Expanded width of zoom slider on camera to 100% for easier usability
• Setup trial of Honey Badger for reporting on javascript errors
• Modified error handling popup to add additional information to assist with finding some strange errors happening
• Removed old javascript code related to horse skill training which was triggering error when training