* Upgrade hol_light to the latest svn version on google code (r57).
* Improve and semplify the mechanism for the generation of checkpointed binaries.
* Make hol to work with camlp5 and thus with recent version of ocaml (>=3.10, <=3.11).
* Remove ocaml_with_sources which is not needed anymore.
svn path=/nixpkgs/trunk/; revision=23685
