Support for pg_stat_database_conflicts and pg_stat_replication

Hi,

Two new patchs to add support for these 9.1 features.

Not a lot to say. pg_stat_database_conflicts adds the new statistics
columns in the Databases node and on each database's node.
pg_stat_replication adds informations in each server's node.

See screenshots and patches attached.

Comments?


--
Guillaume
 http://www.postgresql.fr
 http://dalibo.com