Updated code to show black if not Icon and show creator_name in library

_layouts/library.html

@@ -36,7 +36,7 @@ layout: default
                 // icon if there is one
                 var icon = rules[i]["icon"];
                 var iconHTML = "";
-                if (icon != null) {
+                if (icon != null && icon != "" && icon != undefined) {
                     iconHTML = "<span class='icon'><img src='" + icon + "' /></span>";
                 }
 
@@ -47,7 +47,7 @@ layout: default
                     "<a href='/create/?r=" + rules[i]["rule_id"] + "'>" + iconHTML +
                     title + "</a></h2>\n";
                 // then the authors
-                var author = rules[i]["creatorName"];
+                var author = rules[i]["creator_name"];
                 if (author != null) {
                     libHTML += "<div class='library-rule-author'>" + author + "</div>";
                 }