fixed baraomter issue (skip first few readings due to sensor errors)

added new eval using shortest-path + plotting
removed compiler warnings for clean-code
fixed some minor issues
added new TeX code and new graphics

code/reader/SensorReaderStep.h

@@ -34,12 +34,10 @@ public:
     /** read the next sensor entry */
     SensorEntryStep getNext() {
 
-        char delim;
         SensorEntryStep entry;
 
         fp >> entry.ts;
 
-        int i = 0;
         return entry;