Apply GPL3 to existing code
Documentation for the Dataset class

 * The Downloader is not yet documented
 * The RST has not been checked/rendered
Add module docstrings to tawhiri.wind{,.download}
General scaffolding, stubs and some initial work
Tests should be here (but they arn't) :-(
Add solver mockups
Add addition operator overloading to Time
Add decimate method
Fix links in README
Fix whitespace in README
Implement bare minimum predictor
Tweak ICs for solvers where AP is provided
Add script to unpack gribmirrors

Conflicts:

	tawhiri/wind/__init__.py
Add unpack_all_gribmirrors to __all__
Remove asserts and dead code from interpolate