Alias feed to rss

Close #6324

css/font-awesome.css

@@ -641,6 +641,7 @@
 .fa-credit-card:before {
   content: "\f09d";
 }
+.fa-feed:before,
 .fa-rss:before {
   content: "\f09e";
 }

less/icons.less

@@ -163,6 +163,7 @@
 .@{fa-css-prefix}-github:before { content: @fa-var-github; }
 .@{fa-css-prefix}-unlock:before { content: @fa-var-unlock; }
 .@{fa-css-prefix}-credit-card:before { content: @fa-var-credit-card; }
+.@{fa-css-prefix}-feed:before,
 .@{fa-css-prefix}-rss:before { content: @fa-var-rss; }
 .@{fa-css-prefix}-hdd-o:before { content: @fa-var-hdd-o; }
 .@{fa-css-prefix}-bullhorn:before { content: @fa-var-bullhorn; }

less/variables.less

@@ -206,6 +206,7 @@
 @fa-var-fast-backward: "\f049";
 @fa-var-fast-forward: "\f050";
 @fa-var-fax: "\f1ac";
+@fa-var-feed: "\f09e";
 @fa-var-female: "\f182";
 @fa-var-fighter-jet: "\f0fb";
 @fa-var-file: "\f15b";

scss/_icons.scss

@@ -163,6 +163,7 @@
 .#{$fa-css-prefix}-github:before { content: $fa-var-github; }
 .#{$fa-css-prefix}-unlock:before { content: $fa-var-unlock; }
 .#{$fa-css-prefix}-credit-card:before { content: $fa-var-credit-card; }
+.#{$fa-css-prefix}-feed:before,
 .#{$fa-css-prefix}-rss:before { content: $fa-var-rss; }
 .#{$fa-css-prefix}-hdd-o:before { content: $fa-var-hdd-o; }
 .#{$fa-css-prefix}-bullhorn:before { content: $fa-var-bullhorn; }

scss/_variables.scss

@@ -206,6 +206,7 @@ $fa-var-facebook-square: "\f082";
 $fa-var-fast-backward: "\f049";
 $fa-var-fast-forward: "\f050";
 $fa-var-fax: "\f1ac";
+$fa-var-feed: "\f09e";
 $fa-var-female: "\f182";
 $fa-var-fighter-jet: "\f0fb";
 $fa-var-file: "\f15b";

src/icons.yml

@@ -1612,8 +1612,9 @@ icons:
     unicode:    f09e
     created:    2.0
     filter:
-      - feed
       - blog
+    aliases:
+      - feed
     categories:
       - Web Application Icons