Add: create gcal event from event page
Fix calendar url
Merge branch 'master' of git.clever-cloud.com:web2day2013
new event way
Add: events in json for full calendar.

FullCalendar is not able to read iCal, go figure
Merge branch 'master' of git.clever-cloud.com:web2day2013
éé
Full calendar want its own iso8601, not the same as the one in ics.

So timestamp it is :(
Merge branch 'master' of git.clever-cloud.com:web2day2013

Conflicts:
	templates/event-json
some logos update
calendar wip
add sponsors gold logo cci
some fancy in event
Merge branch 'master' of git.clever-cloud.com:web2day2013