Debug logs about configurations are sometimes shown and other times not shown.

[ikngtty]

derived from #45

When I run hrafnar and the hrafnar-projects directory doesn't exist, no message appears in console currently.
I think an error message should be shown.

[ikngtty]

I've found that this report is wrong!

The message, which is Hrafnar.logSettings, sometimes appears, other times does not and other times only a part of the message appears. (e.g. HRAF_DASHBORAD_PORT does not appear but HRAF_ODIN_HOST appears.)
The cause of this problem is unknown, but I can say now that there is no relation between this problem and the absence of the hrafnar-projects directory!

Additionally, the error message about the directory's absence is shown not when Hrafnar starts to run but when Hrafnar's web API is called. So error handlings are alright.

[kirisaki]

Actually, I have an idea to to solve this problem.
The logger consist of two threads, one broadcasts logs toward listeners, one relays logs to the broadcaster. The reason why logs don't appear is probably that logs come faster than the broadcaster started.