v4.1.1

• Arduino.org IDE compatibility (ARDUINO preprocessor symbol 1.7.*)
• Fix for interrupt-style handling (buffer corruption when KEEP_NEWEST == true)
• Better test for data OVERRUN
• Add Daylight Savings Time calculation for USA timezones in example NMEAtimezone.ino
• Chain NMEA parser to UBX parser (allows ublox programs to parse both kinds of messages)