Compiler warning fixes

src/MQTTPusher.cpp

@@ -116,7 +116,7 @@ void MQTTPusher::push() {
                     for (const auto &g : p.configurator->getSensorGroups()) {
                         for (const auto &s : g->getSensors()) {
                             if (s->getSizeOfReadingQueue() >= g->getMinValues()) {
-                                if (_msgCap == DISABLED || totalCount < _maxNumberOfMessages) {
+                                if (_msgCap == DISABLED || totalCount < (unsigned)_maxNumberOfMessages) {
                                     if (sendReadings(*s, reads, totalCount) > 0) {
                                         break;
                                     }
@@ -136,7 +136,7 @@ void MQTTPusher::push() {
                         for (const auto &u : a->getUnits()) {
                             for (const auto &s : u->getBaseOutputs()) {
                                 if (s->getSizeOfReadingQueue() >= a->getMinValues()) {
-                                    if (_msgCap == DISABLED || totalCount < _maxNumberOfMessages) {
+                                    if (_msgCap == DISABLED || totalCount < (unsigned)_maxNumberOfMessages) {
                                         if (sendReadings(*s, reads, totalCount) > 0) {
                                             break;
                                         }