Startup: report poco, OS, arch and node info into log
Startup: report poco, OS, arch and node info into log

The poco library version, OS and architecture are reported
as notice and thus should occur almost always. The nodeId
info is not so valuable, thus it is reported in debug mode
only.

Signed-off-by: Jan Viktorin <3eab6ac54c005c4408f608556a6663b7f2abede7@fit.vutbr.cz>

BeeeOn/server,BeeeOn/server,BeeeOn/server,BeeeOn/server