NAWQAAN-206

* Finally cleaning up some commented code I left around
* Added utility for determining max/min for a log axis
* FlowDuration now determining min and max
* FlowDuration ticks now only powers of 10
Merge pull request #203 from isuftin/NAWQAAN-63

NAWQAAN-63 - sites and popups
Merge pull request #202 from jiwalker-usgs/NAWQAAN-206

NAWQAAN-206
Rearranged links in popup container