Handle Commit "show suppressed diff" link with a doc-ready event handler.

Replaces link_to_function use which was deprecated in Rails v3.2.4.
https://github.com/rails/rails/commit/9dc57fe9c

Still absent is a graceful degrade for no-JS.

app/assets/javascripts/application.js

@@ -75,11 +75,6 @@ function slugify(text) {
   return text.replace(/[^-a-zA-Z0-9]+/g, '_').toLowerCase();
 }
 
-function showDiff(link) {
-  $(link).next('table').show();
-  $(link).remove();
-}
-
 (function($){
     var _chosen = $.fn.chosen;
     $.fn.extend({

app/assets/javascripts/commits.js

@@ -57,3 +57,10 @@ var CommitsList = {
       });
     }
 }
+
+$(function () {
+  $('a.supp_diff_link').live('click', function() {
+    $(link).next('table').show();
+    $(link).remove();
+  });
+});

app/views/commits/_text_file.html.haml

 - too_big = max_lines = diff.diff.lines.count > 1000
 - if too_big
-  = link_to_function "Diff suppressed. Click to show", "showDiff(this)", :class => "supp_diff_link"
+  %a.supp_diff_link Diff suppressed. Click to show
 
 %table{:class => "#{'hide' if too_big}"}
   - each_diff_line(diff.diff.lines.to_a, index) do |line, type, line_code, line_new, line_old|