operations are required to have no side-effects.
PUT is used to upload new objects into the filesystem, or to replace an
-existing object. DELETE it used to delete objects from the filesystem. Both
+existing object. DELETE is used to delete objects from the filesystem. Both
PUT and DELETE are required to be idempotent: performing the same operation
multiple times must have the same side-effects as only performing it once.
into the subtree will see that the child subdirectories are not modified by
this operation. Only the link from the given directory to its child is severed.
+ In Tahoe-LAFS v1.9.0 and later, t=unlink can be used as a synonym for t=delete.
+ If interoperability with older web-API servers is required, t=delete should
+ be used.
+
+
Renaming A Child
----------------