WATERSMART-296
* add extent to map in addition to restrictedExtent
* change the map.zoom to use extent rather than restrictedExtent
* modified mousePosition control (may need more iteration)
* more changes to baseMap.js to be more how I like it
Merge pull request #40 from jiwalker-usgs/master

WATERSMART-284
Merge pull request #41 from jiwalker-usgs/snapMap

WATERSMART-296
pom merge