Update docs to use undocumented, also incorporate Site branch changes

doc/resources/ace/skeleton/csses/ace_api.css

@@ -743,6 +743,11 @@ li.signature {
     text-transform: capitalize;
 }
 
+.undocumented {
+    background-color: #B94A48;
+    color: #ffffff;
+}
+
 #documentation .alias a, #documentation .related-to a {
     color: #ffffff;
     /* text-decoration: underline; */ 

doc/resources/ace/templates/lib.jade

@@ -45,9 +45,9 @@ mixin article(obj, parents)
                       -if (loops == 0)
                         -loops = 1 // ensure that we only print ONE meta info UL per signature (some methods have multiple signatures)
                         ul.metaInfo
-                            if obj.incomplete
+                            if obj.undocumented
                               li
-                                span.label.incomplete Incomplete
+                                span.label.undocumented Undocumented
                             if obj.experimental
                               li
                                 span.label.experimental Experimental