Added UPS coordinate conversions for Lat/Lon to UTM

This release adds UPS capability to the UTM conversions in order to return coordinates for the poles. This also updates the usng script to TypeScript and will require npm run build in order to build the dist JS files.

Improved Performance and added spec compliant UTM functions

This release updates the package.json and bower.json so the project can be published. It also includes a small performance update as well as two additional methods to return/take a UTM compliant Northing value for the Southern hemisphere as opposed to the negative value that we use internally when doing the Lat/Lon to USNG/MGRS conversions.

Bug fixes

Fixed intermittent northing issue in some areas of the globe
Removed underscore as a dependency

Improved accuracy

This release improves accuracy of the LL to USNG and USNG to LL conversions and fixes a number of bugs associated with performing these conversions around the globe.

Initial release

Initial release.

Updated original script to be AMD compatible.
Added many enhancements for converting lat/lon to usng and back.
Added many unit tests to verify that conversions work correctly for points and bounding boxes.