Puppetize icinga log file permission fix.

Without this after applying icinga::monitor incinga ends up not being able to
write to its own log file because it is still owned by the user nagios instead
of icinga. Also echoirc needs to be able to read the irc log files in icingas
log directory.

Change-Id: I33f4f52f94aae0f124671d23144fcd79353c6150