.off(): Add no-argument signature. Fixes jquery#358

Author: kswedberg

entries/off.xml

@@ -23,8 +23,11 @@
       <desc>A selector which should match the one originally passed to <code>.on()</code> when attaching event handlers.</desc>
     </argument>
   </signature>
+  <signature>
+    <added>1.7</added>
+  </signature>
   <longdesc>
-    <p>The <code>.off()</code> method removes event handlers that were attached with <a href="/on/"><code>.on()</code></a>. See the discussion of delegated and directly bound events on that page for more information. Specific event handlers can be removed on elements by providing combinations of event names, namespaces, selectors, or handler function names. <strong>When multiple filtering arguments are given, all of the arguments provided must match for the event handler to be removed.</strong></p>
+    <p>The <code>.off()</code> method removes event handlers that were attached with <a href="/on/"><code>.on()</code></a>. See the discussion of delegated and directly bound events on that page for more information. Calling <code>.off()</code> with no arguments removes all handlers attached to the elements. Specific event handlers can be removed on elements by providing combinations of event names, namespaces, selectors, or handler function names. <strong>When multiple filtering arguments are given, all of the arguments provided must match for the event handler to be removed.</strong></p>
     <p>If a simple event name such as <code>"click"</code> is provided, <em>all</em> events of that type (both direct and delegated) are removed from the elements in the jQuery set. When writing code that will be used as a plugin, or simply when working with a large code base, best practice is to attach and remove events using namespaces so that the code will not inadvertently remove event handlers attached by other code. All events of all types in a specific namespace can be removed from an element by providing just a namespace, such as <code>".myPlugin"</code>. At minimum, either a namespace or event name must be provided.</p>
     <p>To remove specific delegated event handlers, provide a <code>selector</code> argument. The selector string must exactly match the one passed to <code>.on()</code> when the event handler was attached. To remove all delegated events from an element without removing non-delegated events, use the special value <code>"**"</code>.</p>
     <p>A handler can also be removed by specifying the function name in the <code>handler</code> argument. When jQuery attaches an event handler, it assigns a unique id to the handler function. Handlers proxied by <a href="/jQuery.proxy/"><code>jQuery.proxy()</code></a> or a similar mechanism will all have the same unique id (the proxy function), so passing proxied handlers to <code>.off</code> may remove more handlers than intended. In those situations it is better to attach and remove event handlers using namespaces.</p>