Handle print serivce crashes.

1. Now after a print service crashes we are bringing it to the same
    state of its lifecycle. For example, if a service does a discovery
    and crashes we recreate the discovery session call the start
    discovery method and so on.

2. Turned off debugging logs since we have fully fledged state dump.

bug:10697779

Change-Id: Id790537461428e96b197eef12258996bda2bd1ce