Only show events w/ descriptions in EventPalette

Also, auto-generate human readable event name in editor. This is a good example of how we could do this automatically for some kind of `onCommand`, `command`, `onInteractiveEvent` method that combines the event name, documentation string, and handler in one shot.

src/stdlib/jquery-extensions.coffee

@@ -56,10 +56,12 @@ $.fn.document = (eventDescriptions) ->
 
 $.fn.events = ->
   documentation = @data('documentation') ? {}
-  events = _.keys(@data('events') ? {}).map (eventName) ->
-    _.compact([eventName, documentation[eventName]])
+  events = {}
+
+  for eventName of @data('events') ? {}
+    events[eventName] = documentation[eventName] ? null
 
   if @hasParent()
-    events.concat(@parent().events())
+    _.extend(@parent().events(), events)
   else
     events

src/stdlib/underscore-extensions.coffee

@@ -51,3 +51,14 @@ _.mixin
     # even though only some strictly require it when inside of []
     regex = RegExp('[' + specials.join('\\') + ']', 'g')
     string.replace(regex, "\\$&");
+
+  humanizeEventName: (eventName) ->
+    if /:/.test(eventName)
+      [namespace, name] = eventName.split(':')
+      return "#{@humanizeEventName(namespace)}: #{@humanizeEventName(name)}"
+
+    words = eventName.split('-')
+    words.map(_.capitalize).join(' ')
+
+  capitalize: (word) ->
+    word[0].toUpperCase() + word[1..]