Add Ryan Breen (system tray notification).
Add some descriptions.
Wuebben -> Wübben (ü = ü).
Move Heiko Hund to Credits tab (I intend to move everyone below Zack who (this refers not to Zack but to everyone below Zack) hasn't contributed to KMail development during the KDE 3.2+ development cycle together with a short description of their former contributions to the Credits tab).
The KDE Email client -> KDE Email Client
svn path=/trunk/kdepim/; revision=204247