Use custom URL class

[ramondeklein]

WebDAV URLs seem to behave a little bit different from normal URLs, because they don't support fragments. This has been fixed (partially) in the UriHelper class, but the store implementation needs to call this class at appropriate times which is a bit awkward and error-prone.

A custom URL class would probaby be easier to use, but this requires breaking changes to the API.

[pizixie]

When there is only one client, no problem
but on windows server,there are have some rdp sessions.

each session can make a webdav client,
but the windows service "WebClient" can run only once.
so these client run error in rdp session

i think,use custom URL can resolve this problem.(maybe need HTTP BasicAuth feature)
like:https://www.ajaxbrowser.com/
it's powered by IT Hit WebDAV System

user a
https://www.ajaxbrowser.com/User714b2c1/

user b
https://www.ajaxbrowser.com/User627acb4/