v1.8.4

Bug corrections

• fix of a bug where vmin and vmax were not applied to lat/lon grid profiles
• fix in plots_grid.py for barbs DDA plots
• fix for file locking issue on NFS systems for timeseries csv files
• deprecation fixes for latest numpy version

New additions

• added support for multi radar in rt processing
• Added new Product WINDSHEAR_LIDAR
• made pyDDA wrapper compatible with new pyDDA version
• added GATEFILTER dataset which reproduces Py-ART gatefilter in pyrad + fixes in DDA processing