LISA xspec stuff current status

strain2xspectime.pl creates input file correctly for time series data and this is fit using the mbht model. However, residuals show high frequency correlations presumably because noise is being
applied in frequency space in synthlisa. The strain2xspec.pl and mbh model which work in frequency space are not working correctly - the model doesn't match the data when it should. All current changes are checked into the repository.

I'm not clear how and why the postBuffer is used - need to check this with Sean or Ira.

Larger question is how should the noise be generated ? Is it correct to do this in the frequency domain ? A better detector model may be required.

building lisatools

Building lisatools using the instructions provided by Michele. A few things to note :

1. The correct svn command is
svn co https://lisatools.svn.sourceforge.net/svnroot/lisatools lisatools

2. The build of synthLISA fails with a C++ error. This is because python2.5 requires the
SWIGged files to have been created by swig 1.3.31, not the swig 1.3.29 in lisatools. Grabbed
the new gzipped swig from sourceforge and replaced in lisatools/Packages. Then edited
master-install.py to use 1.3.31 instead of 1.3.29.

3. This still fails because the SWIGged files are not created in the standard build. Deleted
lisasim/{lisasim-swig_wrap.cpp, lisasim.py} then built synthLISA using the setup.py in
synthLISA-1.3.3. Note that if I rerun the master-install.py it reextracts the contents of the
tarfile and puts back the two files I just deleted.