fix errors for anonymous users in the wiki

app/coffee/modules/wiki/main.coffee

@@ -238,6 +238,7 @@ EditableWikiContentDirective = ($window, $document, $repo, $confirm, $loading, $
         $el.on "mouseup", ".view-wiki-content", (event) ->
             target = angular.element(event.target)
             return if getSelectedText()
+            return if not isEditable()
             return if target.is('a')
             return if target.is('pre')
 

app/styles/layout/wiki.scss

@@ -24,10 +24,6 @@
     position: relative;
     .view-wiki-content {
         &:hover {
-            .wysiwyg {
-                background: $whitish;
-                cursor: pointer;
-            }
             .edit {
                 opacity: 1;
                 top: -1.5rem;
@@ -67,4 +63,12 @@
             top: .4rem;
         }
     }
+    &.editable {
+        &:hover {
+            .wysiwyg {
+                background: $whitish;
+                cursor: pointer;
+            }
+        }
+    }
 }