Fixes runtime logging and makes it a config option.

Option starts off by default, since that could be seen as the original behavior...

Signed-off-by: Mloc-Argent <colmohici@gmail.com>

Conflicts:
	code/controllers/configuration.dm
	config/example/config.txt
Merge pull request #240 from alex-gh/bs12_cherrypicks4

Fixes runtime logging and makes it a config option.