Update plain processor

![screen shot 2014-11-19 at 2 10 47 pm](https://cloud.githubusercontent.com/assets/1162120/5101120/e79c6cd2-6ff5-11e4-9fad-e4df92d2d0d2.png)

Fix error to use the plain processor.
Prefer double-quoted strings unless you need single quotes to avoid extra backslashes for escaping.