helpers: allow preference handler to use new font-system

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
activity: bring in some kitkat flavor

Kitkat based devices will benefit a lot from it.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
voltage: add proper kitkat layout changes

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
voltage: fix out of array issue

Also disabling the onBindView() since it currently has
zero usage and just breaks the compatbility.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>