Link to artist entries for taken artist names.

In artist entries, there is a Check link next to the name field that
lets you check whether the name is already taken. When the name /is/
taken, you often want to check the other artist entries to see if
you're creating a duplicate. This adds links to the other entries so you
can check them more easily.

app/assets/javascripts/artists.js

@@ -55,11 +55,18 @@
       }
 
       $.get("/artists.json?name=" + artist_name,
-        function(data) {
-          if (data.length) {
-            $("#check-name-result").html("Taken");
+        function(artists) {
+          $("check-name-result").empty();
+
+          if (artists.length) {
+            $("#check-name-result").text("Taken: ");
+
+            $.map(artists.slice(0, 5), function (artist) {
+              var link = $("<a>").attr("href", "/artists/" + artist.id).text(artist.name);
+              $("#check-name-result").append(link);
+            });
           } else {
-            $("#check-name-result").html("OK");
+            $("#check-name-result").text("OK");
           }
         }
       );

app/assets/stylesheets/specific/artists.css.scss

@@ -29,6 +29,10 @@ div#c-artists, div#excerpt {
     .hint {
       display: block;
     } 
+
+    #check-name-result a {
+      margin-right: 1em;
+    }
   }
 
   div.recent-posts {