Connectors that wouldn't send the plugin name even when the plugin
authentication capability was enabled would have to do an extra step in
the authentication.
By logging the password hash when user authentication fails due to a
password mismatch, we can be certain what the client sent and what is the
currently stored value in MaxScale. This should not be on by default which
is why a new parameter is required.
By checking whether the users have changed whenever they are reloaded, we
improve the visibility of the user reloading process. Using a checksum
allows us to easily compress the information with acceptable loss of
accuracy. Using a CAS loop prevents duplicate messages without losing any
updates even if multiple user reloads result in different outcomes.
SQLITE_OPEN_URI flag was missing causing the databases to be created in
disk instead of in memory. Also added info level log message from created
database in clustrixmonitor.
