Move word-break extend into _extends.scss
Remove “screen and” declaration from media query mixin
Fix typo in comments of vertical-center mixin
patterns: add media object styles and markup
media styles: convert spaces to tabs
Merge branch 'master' of github.com:getchopstick/chopstick-boilerplate into feature--gulp

* 'master' of github.com:getchopstick/chopstick-boilerplate:
  Fix typo in comments of vertical-center mixin
  Remove “screen and” declaration from media query mixin
  Move word-break extend into _extends.scss
Merge branch 'feature--media-object' of github.com:getchopstick/chopstick-boilerplate into feature--gulp

* 'feature--media-object' of github.com:getchopstick/chopstick-boilerplate:
  media styles: convert spaces to tabs
  patterns: add media object styles and markup