Fix UTF-8 replace problems in whois

Fix error in parsing/formatting output of whois command due
to UTF-8 errors.
Fix and precize README.
Add testing support for Cisco IOS-XR

Add modified ulgcisco.py clone for IOS-XR.
Contributed by Rene Haas, Kurt Bauer.
Fix footer in the intex HTML file.
add NIX CZ logo
Adding an optional nixcz style
Move additional files from src directory

Followup in the nixcz branch to finish the cleanup started by the
src removal patch in master.