org.webosports.cdav: bump SRCREV

* bump to version 0.2.4
* added icloud account template to prevent username issue.
* made sync more memory efficient on big datasets

Signed-off-by: Simon Busch <morphis@gravedo.de>
packagegroup-webos-ports-extended: add pmcertificatemgr

Signed-off-by: Simon Busch <morphis@gravedo.de>