Fixed memory overwrite bug. This fixes the png writer and led control.

test/TestRgbImage.cpp

@@ -0,0 +1,22 @@
+
+// Utils includes
+#include <utils/RgbImage.h>
+
+int main()
+{
+	std::cout << "Constructing image" << std::endl;
+	RgbImage image(64, 64, RgbColor::BLACK);
+
+	std::cout << "Writing image" << std::endl;
+	for (unsigned y=0; y<64; ++y)
+	{
+		for (unsigned x=0; x<64; ++x)
+		{
+			image(x,y) = RgbColor::RED;
+		}
+	}
+
+	std::cout << "Finished (destruction will be performed)" << std::endl;
+
+	return 0;
+}