Remove Tclx dependency The package seems to have only little dependencies of tclx. Since Tclx is not available for tcl8.6 and up, the dependency is removed. To get the "fork" call, we additionally need the "expect" package.
Replace iqefunc.c with a version that does not need NR code This patch replaces iqefunc.c by the version from ESO-MIDAS 15SEPpl1.0 which uses mpfit.c instead of mrqfit.c. Differently to the solution in ESO-MIDAS, the sort function was replaced by the libc qsort().
