Copy over changes made to gh-pages directly

This includes the following commits from the gh-pages branch:

 - 63e80b8
 - d24a397
 - 9796cd6
 - ee21707
 - ccb0f1d
 - 200e6b3
 - 64134c0
 - 57152d2
 - 8ffbfa3

docs/templates/manual.liquid

@@ -35,6 +35,17 @@
                   }
                 });
               });
+              // add "Run" button to execute examples on jqplay.org
+              $(function() {
+                $.each($('table.manual-example'), function(index, value) {
+                  $value = $(value)
+                  var j = $value.find('tr:nth-child(2) td:first').text();
+                  var q = $value.find('.jqprogram').text().replace(/^jq /, '').replace(/^'(.+)'$/, '$1');
+                  var url = 'https://jqplay.org/jq?q=' + encodeURIComponent(q) +'&j=' + encodeURIComponent(j)
+                  var $last_tr = $value.find('tr:last');
+                  $last_tr.after('<tr><th><a href="' + url + '" class="btn btn-primary btn-small">Run</a></th><th></th></tr><tr><th></th><th></th></tr>');
+                });
+              });
             </script>
             <input type="text"
                    class="input-medium search-query"