Merge pull request #504 from pcn/master

Add pssclabs for DoD NYC 2013
new sponsors ca, speerhead London
new proposal burnout - elephant in the room - London
new proposal burnout - elephant in the room - London
Added Tom Santero talk
Merge pull request #505 from rhoml/rhoml/new-proposals

Added Tom Santero talk
Added sonatype to the nyc 2013 sponsors