Log: Simplify, remove warnings.
Log: Simplify, remove warnings.

We lose the hack that allowed undefined static class-member.

But code is simpler.

Change-Id: Ida8a2b77063e420712a65a753e7186f9a09bfede

aldebaran/libqi,aldebaran/libqi,aldebaran/libqi,vbarbaresi/libqi,bsautron/libqi