Updating references:
* Botti, 2013.
* Adding WSSSPE paper.
* Adding Tonks, 2013b.
* Adding Medvedev, 2012.
* Adding Carlson, 2013.
* Adding Teague, 2013 thesis.
* Adding Tonks, 2013 Tech report.
* Adding Tonks Acta Materialia paper.
* Adding Butterfield senior thesis.

Adding scholar search terms.
Make separate PDFs for each section and combine them together later.
Updating citation statistics for October 2013.
Updating publications website.