Added David Mytton's talk on Firefighting - strategies for on call and incident management
announcing the initial batch of 30-min talks
there's always an extra div… :(
it's divs all the way down.
adding links to asbstracts
changed status of proposals still being considered for ignites
cleaning up <br>s
Merge pull request #490 from pcn/master

Add tumblr to nyc-2013
Merge pull request #489 from stack72/master

Added David Mytton's talk on Firefighting - strategies for on call and incident management
added Mark Burgess Proposal
cleanup tumblr logo for NYC
fix in markdown
fix in markdown
Added sponsor
update 2013-atlanta sponsors:

 - add Turner and their logo
update turner url
Merge pull request #491 from tyderia/master

update to add turner as sponsor, update here.com URL
added Ben's proposal for London
proposal London Pieter Hintjens
add C4 link - proposal London Pieter Hintjens