Add support for specifying dk release type in brunch/breakfast, (1/2):

Use e.g. brunch hammerhead BETA,
if no specific type was set,
UNOFFICIAL will be used.
The type is a free usable string,
(maybe I`ll change this later).

Also show the dk release type in the package name,
the "Darkkat version" preference in the settings app
and the system info in the DKUpdater app.

Change the package name to:
dk-<Android version>-<build date>-<dk release type>-<device>