jQuery.get, jQuery post: add new config object signature

Fixes gh-620
Closes gh-622

Author: togakangaroo

entries/jQuery.get.xml

@@ -1,6 +1,12 @@
 <?xml version="1.0"?>
 <entry type="method" name="jQuery.get" return="jqXHR">
   <title>jQuery.get()</title>
+  <signature>
+    <added>3.0</added>
+    <argument name="settings" type="PlainObject" optional="false">
+      <desc>A set of key/value pairs that configure the Ajax request. All properties except for <code>url</code> are optional. A default can be set for any option with <a href="/jQuery.ajaxSetup/">$.ajaxSetup()</a>. See <a href="/jquery.ajax/#jQuery-ajax-settings">jQuery.ajax( settings )</a> for a complete list of all settings. The type option will automatically be set to <code>POST</code>.</desc>
+    </argument>
+  </signature>
   <signature>
     <added>1.0</added>
     <argument name="url" type="String">

entries/jQuery.post.xml

@@ -1,6 +1,12 @@
 <?xml version="1.0"?>
 <entry type="method" name="jQuery.post" return="jqXHR">
   <title>jQuery.post()</title>
+  <signature>
+    <added>3.0</added>
+    <argument name="settings" type="PlainObject" optional="false">
+      <desc>A set of key/value pairs that configure the Ajax request. All properties except for <code>url</code> are optional. A default can be set for any option with <a href="/jQuery.ajaxSetup/">$.ajaxSetup()</a>. See <a href="/jquery.ajax/#jQuery-ajax-settings">jQuery.ajax( settings )</a> for a complete list of all settings. Type will automatically be set to <code>POST</code>.</desc>
+    </argument>
+  </signature>
   <signature>
     <added>1.0</added>
     <argument name="url" type="String">