:text selector: Clarify that it is for <input>s, not DOM text nodes

Closes jquerygh-587

Author: cvrebert

entries/text-selector.xml

@@ -5,7 +5,7 @@
   <signature>
     <added>1.0</added>
   </signature>
-  <desc>Selects all elements of type text.</desc>
+  <desc>Selects all input elements of type text.</desc>
   <longdesc>
     <p><code>$( ":text" )</code> allows us to select all <code>&lt;input type="text"&gt;</code> elements. As with other pseudo-class selectors (those that begin with a ":") it is recommended to precede it with a tag name or some other selector; otherwise, the universal selector ( "*" ) is implied. In other words, the bare <code>$( ":text" )</code> is equivalent to <code>$( "*:text" )</code>, so <code>$( "input:text" )</code> should be used instead. </p>
     <p><strong>Note:</strong> As of jQuery 1.5.2, <code>:text</code> selects <code>input</code> elements that have no specified <code>type</code> attribute (in which case <code>type="text"</code> is implied).  </p>