working on contour elevations
resolved merge conflict
added row and column to cell object
Merge pull request #26 from hwreeves-USGS/hwrclassy

added row and column to cell object
added SFR_parameters to XML file for final data file
Merge pull request #27 from hwreeves-USGS/hwrclassy

added SFR_parameters to XML file for final data file
premerge
merge conflicts solved