Change the severity of some log messages.
Change the severity of some log messages.

The startup/shutdown messages are now Info instead of Error. Some
fatal errors now log with Fatal instead of Error.

agoode/cloud-print-connector,google/cloud-print-connector,avlis/cloud-print-connector,agoode/cloud-print-connector,201371192/cups-connector,swills/cups-connector,201371192/cups-connector,agoode/cloud-print-connector,swills/cups-connector,agoode/cloud-print-connector,avlis/cloud-print-connector,google/cloud-print-connector,avlis/cloud-print-connector,google/cloud-print-connector,google/cloud-print-connector,agoode/cups-connector,agoode/cups-connector,avlis/cloud-print-connector