Modified: Support Author.

**Support Author**

I propose on entry of author.
If multiple user to contribute of blog entry then identify a post entry.
 
How you do you feel about this commit?

![author_screen_shot](https://f.cloud.github.com/assets/72997/1063713/c43665f2-12dd-11e3-916b-37d3befdd1a2.png)