Feature: Support Unicode named HTML Entities

&aleph; => &amp;#8501;

![image](https://cloud.githubusercontent.com/assets/8693091/4514667/1025f3cc-4b83-11e4-9324-13827098591c.png)

Output 

![image](https://cloud.githubusercontent.com/assets/8693091/4514664/ecfcf58a-4b82-11e4-9cf6-0ba5a4490113.png)