Fix typo in JS, add title to the search input box

Author: drbrain

lib/rdoc/generator/template/darkfish/_sidebar_search.rhtml

@@ -1,7 +1,8 @@
 <nav id="search-section" class="section project-section" class="initially-hidden">
   <form action="#" method="get" accept-charset="utf-8">
     <h3 class="section-header">
-      <input type="text" name="search" placeholder="Search" id="search-field">
+      <input type="text" name="search" placeholder="Search" id="search-field"
+             title="Type to search, Up and Down to navigate, Enter to load">
     </h3>
   </form>
 

lib/rdoc/generator/template/darkfish/js/darkfish.js

@@ -69,7 +69,6 @@ function hookTableOfContentsToggle() {
 function hookSearch() {
   var input  = $('#search-field').eq(0);
   var result = $('#search-results').eq(0);
-:wa
   $(result).show();
 
   var search_section = $('#search-section').get(0);