This commit adds mltonHEAD.
Summary of all the changes in this branch:
* mlton20130715
- for this one I just copy and pasted the old default.nix
- I have tested some projects that compile with this version and don't
compile with the newer version, so I think it makes sense to keep
the old version
* mlton20180207Binary
- This is used to build the source derivations
* mlton20180207
- latest release
* mltonHEAD
- latest commit to the master branch of the github repo at the time of
creating this derivation
This works the same as the binary package in the old derivation, by
patching the release binary. The difference is that this derivation
is also exposed at the top level.
Sophia Donataccio