Defaulted max active db connections setting to 100 instead of 10. 10 is
too low.
Added PostgreSQL support.
Added some testing code
Revised the *nix start scripts to be modularized.
Bug fix in events page url
Added enforcement of url permissions.
Separated the comm port list from the comm port setting in serial
settings since, when in use, a comm port may not be listed.
Added utility to gather the list of available local host addresses.
Added icon referenced from serial settings tag
Added generalized runtime status section to data sources, and replaced
the log message regarding discarding polls with a runtime status metric.