some adjustments to match latest changes in KLib/Indoor

switched from Beacons to real Fingerprint points for fingerprinting

tools/calibration/WiFiCalibrationDataModel.h

@@ -44,6 +44,7 @@ public:
 			// deserialize it
 			WiFiFingerprint wfp;
 			wfp.read(inp);
+			if (wfp.measurements.entries.empty()) {continue;}
 			fingerprints.push_back(wfp);
 
 		}
@@ -77,7 +78,7 @@ public:
 		// try to find an existing one
 		for (WiFiFingerprint& wfp : fingerprints) {
 			// get within range of floating-point rounding issues
-			if (wfp.pos_m.getDistance(pos_m) < 0.001) {return wfp;}
+			if (wfp.pos_m.getDistance(pos_m) < 0.01) {return wfp;}
 		}
 
 		// create a new one and return its reference