This commit brings the notebook into the rest of the distribution
infrastructure set up for cryptol. The main points are:
- new icryptol-kernel executable
- new icryptol shell script that wraps ipython and makes sure the
cryptol profile is set up
- Makefile target for friendly local testing (`make notebook`)
- moved example notebooks to examples subdirectory
Now, the notebook interface runs its own ZeroMQ interface using the
EasyKernel module that is now exported from IHaskell's underlying
ipython-kernel library. This eliminates the line protocol with the
Python wrapper, and it should work on Windows (though it is not tested
there).
Part of this involved making the REPL monad able to change the IO action
used to print strings.
Continuing issues and improvment possibilities are in the issue tracker
- see issue #75 for a starting point.
The python side of the notebook needed to be updated to expect a
.cabal-sandbox rather than cabal-dev sandbox. Also added a -fnotebook
flag to the cabal file to build the Haskell side of it.
