IRIS WS zero sample records

Data records with zero samples (for example, event detection data) will no longer be stripped from the returned data. If you would still like to access these zero-sample records, please refer to the Help section documentation for the fdsnws-dataselect service (hyperlink-http://service.iris.edu/fdsnws/dataselect/docs/1/help/) for more details.

2.0.17: # WARNING: head commit changed in the meantime

Change-Id: I0b0dd9c02d5ca552488c38d64a1f40fede2eacee

first public release

2.0.16

pre 2.0.16