Fix for tdf#82744: Gerrit+Jenkins verified, ready for a reviewer

Hi all,

tdf#82744:

https://bugs.documentfoundation.org/show_bug.cgi?id=82744

I uploaded the fix to Gerrit:

https://gerrit.libreoffice.org/#/c/17080/

All the three related patch sets built successfully.

There are still a number of things to be addressed, reported in the part 
1 of the fix, mostly related to ucb/webdav:

- in ucb/webdav make flag m_bTransient working right, currently lock 
option for WebDAV server not supporting the functionality is suboptimal;

- change the method the modified file is checked against the old one, 
using DAV:etag instead of the DateTime;

- some http status code returned by the server don't seem to be managed;

- during WebDAV operation some redundant request of properties is 
carried out. Probably some clean up to remove these not needed 
transactions is to be done. Accessing only those really supported by the 
referenced href would be better.

This can be addressed in further work.

In case WebDAV functionality is needed in Android and iOS platforms,
the lock/unlock commands are not used.

This is something that need to be addressed in part 3 of the fix.

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