adding missing intel fortran libraries for run_softpoint.x
update README

Since SARAH 4.0.4 the user can simply put the SARAH model files into
FlexibleSUSY/sarah/
write more system and build information into config.h
print build information on demand
store info about low-energy model in model info module
add helper function to print model information
remove dependency on config.h

This reduces compilation time if ./configure is run again.
remove -frecursive from default FFLAGS

It is not needed because there are no recursive Fortran functions.
Merge branch 'development' into feature-higgs-two-loop