News features and fixes in core :
- Display more metrics : temporary data, I/O time, average runtime
- Fix timestamp for snapshots
- DEALLOCATE and BEGIN statements are now ignored
- PoWA history tables are now marked as "to be dumped" by pg_dump
- Improve performance for "per database aggregated stats"
News features and changes in UI :
- Follow the selected time interval between each page
- Add a title to each page
- Display metrics for each query page
- Move database selector as a menu entry
- Display human readable metrics
- Fix empty graph bug
When upgrading from older versions :
- Upgrade the core with ALTER EXTENSION powa UPDATE.
- The format of the database section of the powa.conf has changed. The new format is :
"dbname" : "powa", "host" : "127.0.0.1", "port" : "5432",
(instead of one line containing the dbi:Pg connection info)