Revert "Added Tangoe as a sponsor to Austin 2014 and removed hackathon word from landing photo of Austin"

This reverts commit efae7ca4c733304b1b686946114eb23031d8211d.
Readded Tangoe and removed hackathon word from Austin 2014
Revert "Readded Tangoe and removed hackathon word from Austin 2014"

This reverts commit 5b4e8d7076b380c613933bd0e1ce9567f40dc760.