Merge pull request #754 from littleidea/pitt

Add sponsor IBM
Merge pull request #755 from littleidea/pitt

Updating index to close CFP
[ljubljana 2014] add video details
Merge pull request #756 from extraordinaire/master

[ljubljana 2014] add video details
Added in all the backlog of proposals for Silicon Valley event
Added bios for some that didnt originally have them
Stackdriver sponsoring Austin
Added more bios
Merge pull request #757 from rberger/add_sv_proposals_4_7

Added in all the backlog of proposals for Silicon Valley event
hiding Austin happy hour sponsor link
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