Ubuntu Install instructions and wget noclobber#1

Open

Osram-Lux wants to merge 4 commits intoangelstam:masterfrom

Osram-Lux:master

Commits on Dec 13, 2015

Adds detailed Ubuntu 15.10 install instructions
Osram Lux
committed
Corrects install instructions for Ubuntu
Osram Lux
committed

Commits on Dec 14, 2015

Adds no clobber option to wget
Osram Lux
committed
Removes redundand debug printout introduced in previous commit
Osram Lux
committed