rcS.tophat: Switch uImage/kernel according to tophat or nickel.
dlgCredits.cpp: About shows uImage/kernel version number

Such as "uImage: 2.6.35.3-g38d0c74".
dlgSetupQuick.cpp: make buttons standard height (taller) in portrait mode

And in landscape mode, but the Close button on the same line
as the Screen and Advanced buttons so all buttons can be a little
taller if the screen permits.
KoboMenu.cpp: say "Connect to PC" instead of "Nickel"

When it starts up in Nickel mode, it allows the USB cable to be connected
to a PC to transfer files.
Kobo/System: add bool IsKoboUsbHostKernel() method

Returns true if Kobo us running a kernel that suports USB Host mode
LogoView.cpp: show if USB Host is supported for Kobo Build
NEWS.txt