started removing KLib related code:

- assertions
- distributions
new helper methods
worked on stairs
worked on grid-walkers
worked on navigation

grid/walk/GridWalkWeighted.h

@@ -5,7 +5,7 @@
 #include "../Grid.h"
 
 #include "../../math/DrawList.h"
-#include <KLib/math/distribution/Normal.h>
+#include "../../math/Distributions.h"
 
 /**
  * perform walks on the grid based on some sort of weighting
@@ -87,7 +87,7 @@ private:
 			const float diff = cur.heading.getDiffHalfRAD(potentialHeading);
 
 			// probability for this direction change?
-			double prob = K::NormalDistribution::getProbability(0, HEADING_DIFF_SIGMA, diff);
+			double prob = Distribution::Normal<float>::getProbability(0, HEADING_DIFF_SIGMA, diff);
 
 			// perfer locations reaching the target
 			const double shortening = cur.node->distToTarget - neighbor.distToTarget;