Fix memory leak on Spike Detector

Author: aacuevas

Source/Processors/SpikeDetector/SpikeDetector.cpp

@@ -144,9 +144,9 @@ bool SpikeDetector::addElectrode(int nChans, int electrodeID)
     newElectrode->numChannels = nChans;
     newElectrode->prePeakSamples = 8;
     newElectrode->postPeakSamples = 32;
-    newElectrode->thresholds = new double[nChans];
-    newElectrode->isActive = new bool[nChans];
-    newElectrode->channels = new int[nChans];
+    newElectrode->thresholds.malloc(nChans);
+    newElectrode->isActive.malloc(nChans);
+    newElectrode->channels.malloc(nChans);
     newElectrode->isMonitored = false;
 
     for (int i = 0; i < nChans; i++)

Source/Processors/SpikeDetector/SpikeDetector.h

@@ -43,9 +43,9 @@ struct SimpleElectrode
     int electrodeID;
     int sourceNodeId;
 
-    int* channels;
-    double* thresholds;
-    bool* isActive;
+    HeapBlock<int> channels;
+    HeapBlock<double> thresholds;
+    HeapBlock<bool> isActive;
 
 };