Tang Chen 0ac6b4fa46 Add doc for logger usage
This patch adds a doc to record rules of usage of
loggers in OSC.

Change-Id: I27a09f9abb523393031560e2310bfdd1af0b8922
Implements: blueprint log-usage
2016-06-16 16:17:37 +08:00
..
2014-11-18 22:07:57 -05:00
2016-06-16 16:17:37 +08:00
2012-06-11 14:37:48 -07:00