[Ipopt] Ipopt release 3.10.4

[Stefan Vigerske]

Hi,

I just created a new Ipopt maintenance release.

Here is a list of changes (r1234 stands for a related svn changeset, 
#123 for a ticket number in the trac bugtracking system):

- fixed sign of dual values in AMPL solution again (with help of Gabe)
   [r2169, r2170, r2184, #183]
- fixed bugs with reoptimizing a TNLP with all variables fixed
   [r2172, r2173, #179]
- fixed more issues with sparse data structures and non-double numbers
   in Matlab interface (by T. Kelman) [r2191]
- added missing final int for Ipopt return code Maximum_CpuTime_Exceeded
   in Java interface [r2216]
- fixed bug when trying to warmstart Ipopt in Java interface [r2253]
- fixed wrong use of SmartPtr's in Java interface [r2255, r2263]
- fixed bug in returning final solution in Java interface [r2258]
- included patch in ThirdParty/Mumps to work around bugs in Mumps
   matrix ordering routines AMF and QAMD (now give preference to AMD and
   METIS)

The source tarballs should be available tomorrow.

Enjoy,
Stefan