write plugin log statements to the console #180

[kaidaguerre]

Log statements at the appropriate level should be written to the console. Currently, you can specify the log level with SP_LOG, and log statements at that level and above will be written to the postgres logs. It would be great for debugging/troubleshooting to also print these to the console (possibly with postgres notice?))

[kaidaguerre]

plugin output now writes to a separate log from the database which is quite simple to find