Update the device file date in the booklist when sending a book.
Edit metadata dialog: Fix window title not changing when using the Next/previous buttons if the books being edited have the same title. Fixes #1383014 [location identifier in edit metadata individually stuck](https://bugs.launchpad.net/calibre/+bug/1383014)
Merge branch 'master' of https://github.com/cbhaley/calibre
Initial implementation of the proceed question as widget instead of a dialog
Animate the initial display of the proceed popup
Use a dedicated widget to draw the icon in the proceed popup
Flash the popup icon for twenty seconds after it is shown to attract the users attention
Allow the icon used in the proceed popups ot be customized
Use a dedicated icon for metadata downloading
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