Installing on Solaris

This is the least tested build but does work although some minor changes to the source code maybe required. Currently, the know changes are:

  1. add #include <ieeefp.h> to mpfit.c
  2. add #include <alloca.h> to spline.cpp and ludecomposition.h
  3. had to make some ints used for array indexing const in SPDImportLVIShdf5Mat.cpp (would just remove SPDImportLVIShdf5Mat.cpp)