v0.8.0

What's Changed

• Some updates by @kthyng in #21
  • time_step_output behavior has changed — 1 hour by default
  • time_step is now 5 min by default
  • added Dcrit parameter for accurately finding where drifters are stranded in tidal flats
  • vertical_mixing is True by default now
  • added seafloor_action option
  • fixed some Leeway/3D handling and log messaging
  • export_variables are specific to drift_model as needed
  • do not drop zeta anymore since used in opendrift
  • output_file is now an option

Full Changelog: v0.7.1...v0.8.0