Adding test harness to Ubuntu
Option to allow following any future redirects added

Github changes URLs from time to time and this option should allow curl
to follow the new location as it doesn't do so by default.
http://curl.haxx.se/docs/manpage.html#-L
Vagrant key - don't use -k
Adding serverspec test harness to Windows 8.1
Adding stub serverspec test harness for Oracle Linux
Adding stub serverspec test harness for Windows 2008 R2