Merge tag 'v1.8.1' of github.com:meetup/sassquatch into squarevatar

update from sassquatch master
avatar templates
avatar--square
compiled docs, avatar examples
padding for touchlist-item avatar
avatar--square note for docs
better examples
Merge branch 'dev' of github.com:meetup/sassquatch into squarevatar
Merge branch 'dev' of github.com:meetup/sassquatch into squarevatar
Merge branch 'dev' into squarevatar
Merge branch 'dev' of github.com:meetup/sassquatch into squarevatar
reverse square/round css for filesize savings
avatar--chapter, avatar--person
docs
Merge pull request #167 from meetup/squarevatar

Square variant for .avatar