Merge pull request #15 from jlthomps/master

new build of SampleSplitting package
Merge pull request #16 from jlthomps/master

removed old SampleSplitting binary and added new source build
Merge pull request #17 from jlthomps/master

deleted obsolete packages, new build of NWCCompare with changes to clari...
updated version of USGSwsQW for censSumStats
Updated dataRetrieval mac binaries.
Added new dataRetrieval updates.
Updated dataRetrieval with multi-site requests.
Merge pull request #18 from ldecicco-USGS/master

Updated dataRetrieval.
Updated dataRetrieval.
Merge pull request #19 from ldecicco-USGS/master

Updated dataRetrieval.
Latest dataRetrieval package.
Merge pull request #20 from ldecicco-USGS/master

Latest dataRetrieval package.
Adding mac binaries.
Merge pull request #1 from USGS-R/master

update