caldav support
bugfix : calendar object needs to be wrapped in calendar
add ui to generate auth credentials
put ui server configuration in another file
feature - import ical
Merge branch 'master' of https://github.com/aenario/cozy-webdav
load credentials only once
Merge branch 'master' of github.com:frankrousseau/cozy-webdav

Conflicts:
	server.coffee
	views/index.jade