Trac #16706: Update IML to 1.0.4

I've been in contact with Arne and he's very cooperative to psuh a new
release on IML website.

'''Upstream''': [http://www.cs.uwaterloo.ca/~astorjoh/iml-1.0.4.tar.bz2]

Should:
* use different cblas and in particular pass easily something different
from "-lcblas -latlas" to the linker,
* and so correctly link the shared lib,
* and so let shared libs be built on Cygwin (#15389),
* anything else you want to fix.

URL: http://trac.sagemath.org/16706
Reported by: jpflori
Ticket author(s): Jean-Pierre Flori
Reviewer(s): François Bissey, Jeroen Demeyer