[ubuntu-art] [Breathe] Again, consistent shadowing. mail-* series

[Cory K.]

@Daniel - After our 1st release the shadowing on your mail-* series will
need to be completely re-worked. I've mentioned it in other threads but
apparently you didn't quite get the message. ;)

The shadows you use have this "hard-line cut-off" style that is
completely different from Sebastien's or even Oliver's. This must be
remedied.


-Cory K.