Always logging jdbc queries.

- At debug level instead of info, so we normally aren't pestered with it.

- In production we now have a setting that shovels this logging to a separate var/log/jdbc.log
Rounding the miliseconds in the logging
Added caching for get_filter_name()
More caching of names. Saves a whole bunch of queries every time
Zapped unused flag/detection/comment fields
Added more debug timing logging
Zapped unneeded import
using cached_property
Using quick datetime parsing when possible

Parsing the times would take 1x to 10x the time of grabbing the data from the
server. Now it is down to 0.1x to 0.3x :-)
Merge pull request #8 from lizardsystem/reinout-jdbc-improvements

Reinout jdbc improvements