Merge pull request #19 from rhayes-cida/master

Fix WaterML2 transform.
[maven-release-plugin] prepare release ngwmn_cache-2.0.11
[maven-release-plugin] prepare for next development iteration
REVIEW - issue GWDP-705: Create Pipeline to Transform Well
Characteristic data to GWML 
https://internal.cida.usgs.gov/jira/browse/GWDP-705

Unit test for SOS observation transform.
REVIEW - issue GWDP-705: Create Pipeline to Transform Well
Characteristic data to GWML 
https://internal.cida.usgs.gov/jira/browse/GWDP-705

Unit test for WFS transform.
REVIEW - issue GWDP-705: Create Pipeline to Transform Well
Characteristic data to GWML 
https://internal.cida.usgs.gov/jira/browse/GWDP-705

Test clean-up.
Merge remote-tracking branch 'upstream/master'