remove unused stuff config

prepare webdav copy webdav

add basic PUT implementation and tests webdav

update configure script webdav

add webdav_delete tests webdav

add vfs unlink and rmdir tests webdav

implement webdav delete for collections webdav

add webdav op function for iterating directories webdav

add mkcol and delete interface to webdav backend, move webdav vfs logic to operation webdav

add minimal mkcol implementation and prepare delete webdav

(0) -100 -10 +10 +100 +300 tip

mercurial