Archlinux now also has osfamily fact

Signed-off-by: Dave Simons <dave@inuits.eu>
Clean up README to use puppet highlight.
Merge pull request #70 from nanliu/cleanup

Clean up README to use puppet highlight.
fixup spec tests for Archlinux

Signed-off-by: Dave Simons <dave@inuits.eu>
Merge pull request #69 from simonsd/master

Archlinux now also has an osfamily fact
Prepare the 1.0.0 release.
Merge pull request #71 from apenney/100-release

Prepare the 1.0.0 release.