Version 2.2
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* Add support for new PlaneAngle and SolidAngle dimensions, thanks
to @gittywithexcitement.
Version 2.1.0.1
---------------
* Update .cabal file to export Data.Units.Astronomical.
Version 2.1
-----------
* Add support for Imperial and astronomical units, thanks to @Bebere.
Version 2.0.1.1
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* Drop 7.8 support, fixing warnings on 8.0.
Version 2.0.1
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* Added the universal gravitational constant, thanks to @hesiod.
Version 2.0.0.1
---------------
* Typos in documentation. Thanks to Doug Burke for a pull request!
Version 2.0
-----------
* Full re-organization of modules.
* Addition of US customary units, CGS units, and a few other gubbins.
Version 1.1
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* Added `si` parser.
* Moved `DefaultUnitOfDim` instances from `SI.MonoTypes` to `SI.Mono`. This allows
client code to import the monomorphic types without getting these instances. But,
it may mean that your imports have to change.
Version 1.0.1
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* Added derived SI units.
* Added British-spelled synonyms for SI units.
Version 1.0
-----------
* First release, contains implementations for SI.