Merge pull request #5 from samdb/master

Pulled in Sponsors info from Sam's fork
Merge pull request #6 from samdb/master

Merged new sponsor details from Sam's fork
Add code of conduct
Add Morgan's second talk.
Change Davey's talk
New Engine Yard logo
Added Foodity as a sponsor
Merge branch 'master' of https://github.com/samdb/phpukconference.github.io