feat: allow application name to be passed in postgres connection url #243
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This change sets the application name to the current version only if a name has not already been specified. This allows us to assign names to instances by including
application_name=foo
as part of the the postgres connection url, e.g. `postgres://user:password@server/database?application_name=headindexer'The application name is shown in the
pg_stat_activity
table.