new talk by Avishai - Future of O/S
Merge pull request #758 from drozer/master

new talk by Avishai - Future of O/S
new talk by JanJoost bouwman and Mark Heistek
Merge pull request #759 from drozer/master

new talk by JanJoost bouwman and Mark Heistek
Adding details for hotel

link and phone number with instructions
Merge pull request #760 from littleidea/pitt

Adding details for hotel