- Ensure espnowDelay and floodingMeshDelay always performs maintenance.
- Rework MutexTracker to use shared_ptr.
- Change enums to enum class.
- Change typedef to using.
- Add HeapMonitor class.
- Make _messageIDs be a map instead of an unordered_map to reduce heap usage.
- Use the possibly broken wifi_country ESP8266 API to check for legal WiFi channels when setting WiFi channels.
- Make MessageData, RequestData and ResponseData contain a TimeTracker rather than inherit from TimeTracker.
- Add deprecated attribute to TransmissionResult.
- Remove superfluous elses.
- Reduce cyclomatic complexity.
- Change postfix ++ and -- to prefix.
- Generalize getEncryptedConnectionIterator method.
- Increase code NRVO compatibility.
- Change _connectionAttemptTimeoutMs type from int32_t to uint32_t.
- Add deprecated attribute to ESP8266WiFiMesh.
- Add some constness to TypeConversionFunctions.
- Move base36 arrays to PROGMEM in TypeConversionFunctions.cpp.
- Add deprecated atttribute to SHA1 and MD5 hashes.
- Remove _warningsEnabled in CryptoInterface since this has been replaced by the deprecated attribute.
- Prefix all TypeConversion getters with "get".
- Improve comments.
- Fix merge conflict.
