New functionnalities by StarXpert

-Add "save in webdav" option in the right click menu on mail, contacts,
appointments, task and files from the briefcase (under the move option in the menu).

-Add translations files to the new features

-Add a function to detect that a file uploaded as attachment to the mail
from the computer is too big (depending on zimbra server config of message max size), and upload it to webdav instead, then add a sharing link in the mail body.