[wip/sensFusion-libs] Update DESCR and LICENSE

- Copy DESCR from the archive of the package
- Update LICENSE: this software includes some code (how much?) from the bayes++
library, which is released under an MIT license. So better stick to the same
license ?

sensFusion-libs/DESCR

 Sensor Fusion Library
+
+sensFusion-libs is a C++ library for low-level sensor data fusion:
+1. Low-pass filters for vision and human tracking.
+2. Kalman filters for force sensing and modeling.
+3. Some other nonlinear Beyesian filters are about to be tested too.

sensFusion-libs/Makefile

@@ -10,7 +10,7 @@ MASTER_SITES=		${MASTER_SITE_OPENROBOTS:=sensFusion-libs/}
 MASTER_REPOSITORY=      git ssh://git.openrobots.org/git/robots/sensFusion-libs
 
 MAINTAINER=		whe@laas.fr
-LICENSE=		isc
+LICENSE=		mit
 
 COMMENT=		Sensor Fusion Library