Gerrit 20034: Add/change some logs in WebDAV ucb.ucp layer

[Giuseppe Castagno]

Hi all,

the subject Gerrit:

https://gerrit.libreoffice.org/#/c/20034/

adds and/or changes logs in WebDAV layer only, I find them useful in 
triaging some of the WebDAV issues.

When a reviewer has time, please have a look.

Thanks.

-- 
Kind Regards,
Giuseppe Castagno aka beppec56
Acca Esse http://www.acca-esse.eu
giuseppe.castagno at acca-esse.eu