Unable to install: sources cannot be obtained for `biniou.1.0.6`

[noncom]

The following error does not allow to install iocaml right now:

[ERROR] curl: code 404 while downloading http://mjambon.com/releases/biniou/biniou-1.0.6.tar.gz

and in the end:

[ERROR] The sources of the following couldn't be obtained, aborting:
          - biniou.1.0.6  
	(This may be fixed by running 'opam update')   

but of course it cannot be fixed because http://mjambon.com/releases is indeed 404.

As a quick fix (why not) I propose to not bind to that website but instead rewrite the dependency to take the releases from https://github.com/mjambon/biniou/releases

Please, fixing ASAP is much appreciated.. seems like a matter of changing 1 line :)