Use proper pacakge names.

Signed-off-by: Mariusz Fik <fisiu@opensuse.org>
Use AsyncTast to load contacts image in background.

Signed-off-by: Mariusz Fik <fisiu@opensuse.org>
Use ViewHolder pattern in adapter.
Use Bitmap instead Drawable in cache.
Put contacts with no image to cache too.

Signed-off-by: Mariusz Fik <fisiu@opensuse.org>
Merge remote-tracking branch 'origin/master'

Signed-off-by: Mariusz Fik <fisiu@opensuse.org>