Task #2730 gsmutils contains function that returns a source list of sources cross-correlated from the VLSS-WENSS(m&p)-NVSS catalogues for a given FoV; lsm.py is an example script

Swap ant1 and ant2 and take conjugate for version 2.
Added version 3 for the future correct MSWriter.

Added parmexportcal again

Task #2680: provide const char * to Parset constructor to satisfy compilers that don't convert std::strings automatically.

Task #2680: global variables in ionproc seperated into GlobalVars.{cc,h}. Versionionproc should now compile on all targets.

Task #2695: Don't allow fftw2 to call exit() (which it does when out of memory) or malloc() (which can throw a bad_alloc on the CNK when out of memory)