CSV and GeoJSON time support

Version 2.0.38 2019-03-28
- CSV reader with support for time and reference time dimensions added
- GeoJSON supports time
- Fixed bug in CRequests causing segmentation fault
- Fixed bug in Tracer which started to write to a closed logfile

Stable docker release

Merge pull request #8 from maartenplieger/master

 Added logrotate to adaguc-server docker