ghc and the hs-packages now simply include the necessary (haskell)
package description files in lib/ghc/package.conf.d and update the
package.cache by running ghc-pkg recache at the end. register and
unregister scripts are no longer needed.
ok sthen@
Shelly provides convenient systems programming in Haskell, similar
in spirit to POSIX shells. Shelly:
* is aimed at convenience and getting things done rather than being
a demonstration of elegance
* has detailed and useful error messages
* maintains its own environment, making it thread-safe
* is modern, using Text and system-filepath/system-fileio
