Wien2k: install wien2k_17.1

NB: Need { fortran compiler + C compiler }
I have intel compiler { ifort +icc }

INSTALLATION OF WIEN2K_17.1
========================================
cd wien2k_17.1/
tar -xf wien2k17.1.tar
gunzip *.gz
chmod +x ./expand lapw
./expand lapw
./siteconfig_lapw
./userconfig_lapw
. ~/.bashrc
w2web