Update to rails 4.2

app/assets/stylesheets/user/foundation/application.css.sass

@@ -7,7 +7,5 @@
 @import ./qmodal
 @import ./display_fields
 @import ./qproduct_orders
-@import ./form_additions
 @import ./qindex
 @import ./qlists
-@import ./qjoin_requests

app/assets/stylesheets/user/foundation/components/_form_additions.css.sass

@@ -1,5 +1,5 @@
 .form-row
-  @extend .row
+  +grid-row(nest)
   .form-label
     @media #{$small-only}
       +grid-column($columns:10, $center:true)

app/assets/stylesheets/user/foundation/components/_join_requests.css.sass

@@ -2,10 +2,8 @@
   .user-email
     padding-left: 12px
   .join-request-reject
-    +button
-    @extend .secondary
+    +button($bg: $secondary-color)
     margin-right: 12px
   .join-request-approve
     +button
     margin-right: 12px
-