Add Andrew Crump's talk to the Chef page and directory
Link to the Chef community page from the schedule
Add Zachary Stevens's talk
Align Chef schedule with mainroom
add George Miranda's talk to the Chef room
Add Julian Dunn's Cookbook talk to the Chef room
Add Julian Dunn's Windows talk to the Chef room
Add some missing line breaks to Julian's Chef talks
Add Marek Hulan's talk to the Chef room
Some minor updates to Marek's talk description
Add Michael Ducy's talk to the Chef room
Add Ulf's talk to the Chef room