Add and install default coloring rules and filter buttons for Logray.
Add is_packet_configuration_namespace() and use it to set the default
timestamp type for Logray to "Absolute", which is more appropriate for
log entries.
Switch to the name "Logray" for the log analyzer. Rays are biological
cousins of sharks and more people like the name "Logray" in a completely
unscientific survey here. Apologies for any inconvenience this might
cause.