Synnefo

copy/move and throw correct exceptions

fix create file

milton webdav support - TODO: get rid of spring dependencies

Each need for displaying the resource's user full name is fulfilled whether by asking the map collection of usernames - fullnames or by making a request to the server and then storing the response to the map collection. Also, the way of making the request for a specific username both to the server layer and the database layer has been changed.

Automated merge with https://gss.googlecode.com/hg/