fixed some potential issues with MAC addresses

added corresponding test-cases
switched to newer version of tinyxml due to some issues
adjusted affected code-parts accordingly
for better re-use, moved ceiling-calculation to a new class
some minor fixes
new helper methods
worked on wifi-opt

geo/EarthPos.h

@@ -12,7 +12,7 @@ struct EarthPos {
 	float height;
 
 	/** ctor with values */
-	EarthPos(const double lat, const double lon, const float height) : lon(lon), lat(lat), height(height) {
+	EarthPos(const double lat, const double lon, const float height) : lat(lat), lon(lon), height(height) {
 		;
 	}
 

geo/Point2.h

@@ -2,6 +2,7 @@
 #define POINT2_H
 
 #include <cmath>
+#include <algorithm>
 
 /**
  * 2D Point