browser_side: dialogs take **kwargs arguments + unibox helper method - add the **kwargs arguments to the dialog classes, especially to pass the Width='xxx' setting - add a method getTargetAndData to UniBox, for external use and to get the message recipient and body without dealing with the target hooks, selected panels...

12e889a683ce07bfdb66ca3952c93fd97329d70c SàT v0.2.0
732ed69ffe11a5116dc9f8e0b084d47cc3f5a658 SàT v0.3.0