removed logging of password from serviceAssitant
removed static URL from prologue
added possible contactset kind to sync contact folders

this is not implemented in syncassistant, yet. Should be straight
forward, though. But first want to gain a little more experience with
calendar sync.
implemented calendar sync

this also updates the folders to sync events from.
additionally removed a lot of debug output.
removed a lot of debug output from CalDav.js
fixed duplicate account creation
added contactset to possible sync values
added db kind for contactset
fixed collection sync

also prevent duplicate entries from different collections.
fix for the createassitant lock functionality
minor fix in caldav library
cleaned up whitespaces in vCard library

Open-WebOS-DCO-1.0-Signed-Off-By: Achim Königs <achim@tratschtante.de>