Hack to fix some thermal zone names being null

(just ignore entire array).
Proper way would be to change those to unnamed or similar.

caratApp/src/main/java/edu/berkeley/cs/amplab/carat/android/storage/SampleDB.java

@@ -435,6 +435,7 @@ private long addSample(Sample s) {
  // Write the sample hashmap as a blob
  try {
  TSerializer serializer = new TSerializer(new TCompactProtocol.Factory());
+ s.setThermalZoneNames(null);
  byte[] sampleData = serializer.serialize(s);
  initialValues.put(COLUMN_SAMPLE, sampleData);
  return db.insert(SAMPLES_VIRTUAL_TABLE, null, initialValues);