Fixes #1722
updated split button docs
updated contributor doc
Merge branch 'master' of github.com:zurb/foundation
updated changelog
updated sass docs to talk about standalone
updated changelog
updated changelog
bump version to 4.0.5
Update index.html

Updated release date
Merge pull request #1802 from justinledwards/patch-1

Update index.html
Changed global font defaults for font-size and -webkit-font-smoothing
Changed global font defaults for font-size and -webkit-font-smoothing
goto is a reserved word, replace with _goto
Fixed the property topbar-margin-bottom

The property $topbar-margin-bottom was defined but not implemented on the scss.
Use position and not offset, position
not in this branch
Use position and not offset, position
Remove activeClass from other dropdowns
Improve rails generator
  - fixed usage text
  - choose layout template depending of installed engines