Merge pull request #19 from azr/master

fix(session.auth): do not fatal error on unsafe auth
remove needless commas
louder warning
gofmt
Respect "Silence is golden" rule, disable WARNING
Merge pull request #20 from AaronO/patch-1

Respect "Silence is golden" rule, disable WARNING
installation with gopkg.in directions
markdown formatting
test on all versions of Go since 1.0
requires Go 1.2 or greater
requires Go 1.2 or later