[Ipopt] Ipopt 3.5.2 release

[Andreas Waechter]

Hi,

I just create a new release 3.5.2 of Ipopt.  Here the except from 
ChangeLog:

2008-09-18 releases/3.5.2
         - changed to latest version of MUMPS (4.8.2)
         - some bugfixes (linear algebra objects, automatic problem scaling)
         - made sure the subversion revision number is correct in all files
         - allowed general additional data and cq in IpData and IpCq

As usual, to get the those changes you can just update your local svn 
copy of Ipopt's stable/3.5 (the recommended way).  The tarball is created 
tonight.

Note, if you want to use the new version of Mumps, you need to rerun the 
get.Mumps script in ThirdParty/Mumps.  They seem to have done some bug 
fixes, but I don't know if they are relevant to Ipopt.

Andreas