Confusing wide/wider new classes

[mohdhazwan]

hi, I'm on pills 1.0.1, in dist/ I can only see this

@media screen and (min-width: 1180px) {
  .wide .row,
  .row .wide {
   margin: 0 auto;
   max-width: 1180px;
 }
}
 
 @media screen and (min-width: 1366px) {
   .wider .row,
   .row .wider {
     margin: 0 auto;
     max-width: 1366px;
   }
 } 

question here

1. this commit only on gh-pages branch?
2. what's the correct way to use the wide/wider/free-width classes. it should be inline or in parent/child