Re: Early review of std.logger

[ilya-stromberg]

Also, Tango have log module:
https://github.com/SiegeLord/Tango-D2/blob/d2port/tango/util/log/Log.d
For example, "Funkwerk IT Karlsfeld" use it because Phobos 
haven't got logger:
http://dconf.org/talks/rohe.html