IMPLEMENTING - issue GWDP-701: Implement a WaterML2.0 SOS for Water
Levels 
https://internal.cida.usgs.gov/jira/browse/GWDP-701

Tests for parsing of XML document input.
IMPLEMENTING - issue GWDP-701: Implement a WaterML2.0 SOS for Water
Levels 
https://internal.cida.usgs.gov/jira/browse/GWDP-701

Regretted to 1.6.
Merge pull request #15 from rhayes-cida/master

IMPLEMENTING - issue GWDP-701: Implement a WaterML2.0 SOS for Water