Duplicate base64 encoding tables?

```
I notice the e1 and e2 encoding tables are the same thing byte for byte. Is 
that intentional (if so why have e2 at all? I ditched it when I ported the 
code) or was it a typo?
```

Original issue reported on code.google.com by `dan.el...@gmail.com` on 19 Mar 2013 at 12:58
