modifies layout so main container is full-width

I tried to do this the "right" way by fixing our layout structure so that rather than paddings and margins added here and there, this did it more of the "bootstrap" way.

Also just a note that we are running Bootstrap-Sass v 3.2 so that slightly changes things as I don't think Blacklight has started implementing some of the changes including the reintroduction of `.container-fluid` in 3.1.

![screen shot 2014-07-16 at 9 24 01 am](https://cloud.githubusercontent.com/assets/1656824/3599325/8517ff24-0ced-11e4-9c21-95a4ad4f1db8.png)
![screen shot 2014-07-16 at 9 24 24 am](https://cloud.githubusercontent.com/assets/1656824/3599329/875094f4-0ced-11e4-963a-c6e4686248ff.png)
![screen shot 2014-07-16 at 9 24 14 am](https://cloud.githubusercontent.com/assets/1656824/3599331/8a55bbb6-0ced-11e4-854d-264f2112e49f.png)
![screen shot 2014-07-16 at 9 24 18 am](https://cloud.githubusercontent.com/assets/1656824/3599333/8c3fc9da-0ced-11e4-9f8b-ddea5b3b0d40.png)