Update Vendored Erubis to 2.6.6

vendor/plugins/erubis/examples/pi/example.ejava

@@ -0,0 +1,45 @@
+<?java
+import java.util.*;
+
+public class example {
+
+  public static void main(String[] args) {
+    String user = "Erubis";
+    String[] list = { "<aaa>", "b&b", "\"ccc\"" };
+    StringBuffer _buf = new StringBuffer();
+?>
+<p>Hello @{user}@!</p>
+<table>
+  <tbody>
+    <?java for (int i = 0; i < list.length; i++) { ?>
+    <tr bgcolor="@{i % 2 == 0 ? "#FFCCCC" : "#CCCCFF"}@">
+      <td>@!{i + 1}@</td>
+      <td>@{list[i]}@</td>
+    </tr>
+    <?java } ?>
+  </tbody>
+</table>
+<?java
+    System.out.print(_buf.toString());
+  }
+
+  public static String escape(String s) {
+    StringBuffer sb = new StringBuffer();
+    for (int i = 0; i < s.length(); i++) {
+      char ch = s.charAt(i);
+      switch (ch) {
+      case '<':   sb.append("&lt;"); break;
+      case '>':   sb.append("&gt;"); break;
+      case '&':   sb.append("&amp;"); break;
+      case '"':   sb.append("&quot;"); break;
+      default:    sb.append(ch);
+      }
+    }
+    return sb.toString();
+  }
+
+  public static String escape(int i) {
+    return Integer.toString(i);
+  }
+}
+?>