Merge pull request #499 from abhishekkr/india-2013

homepage UpComing events & map updated for India 2013
Added Github as a sponsor for devopsdays Barcelona
Merge pull request #500 from rhoml/rhoml/added-sponsors

Added Github as a sponsor for devopsdays Barcelona
Portland 2013: Jeremy Grosser proposal
Merge pull request #501 from webframp/jeremy-grosser

Portland 2013: Jeremy Grosser proposal
add xebialabs to sponsors (gold)
Merge pull request #502 from tyderia/master

add xebialabs to sponsors (gold)
Portland 2013: Elijah Lovejoy proposal
Merge pull request #503 from webframp/elijah-lovejoy

Portland 2013: Elijah Lovejoy proposal
Fix registration page
Add pssclabs for DoD NYC 2013
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
Merge pull request #506 from pcn/master

Added sonatype to the nyc 2013 sponsors
Added Xebialabs to NYC 2013 sponsors.