handle bad database files better and notify user

Signed-off-by: Thomas Stilwell <stilwellt@openlabs.co>
quit on gpg error

Signed-off-by: Thomas Stilwell <stilwellt@openlabs.co>
add message to use stop.sh script to stop daemon

Signed-off-by: Thomas Stilwell <stilwellt@openlabs.co>
Merge pull request #598 from benemorius/ux

ux improvements