Merge pull request #66 from Spencer-Allen/master

Add July photos
Moves over last month's presos
Sept updates
Swaps mark's talk for giles'
Merge pull request #67 from jxson/master

Sept Updates
fix date and venue on banner
fix typos
corrected yahoo host link
Merge pull request #68 from Omarcito/master

corrected yahoo host link
adding new yahoo logo
Merge pull request #69 from jsla/update-y-logo

adding new yahoo logo