Updated AVRUtils, ADCUtils, HexDump and ShowInfo.

• Updated AVRUtils, ADCUtils, HexDump and ShowInfo.
• Added Optiboot 8.1.

Miscellaneous bug fixes, renamings and improvements

• SimpleEMAFilters: Added "State Variable" / Biquad and double and triple Lowpass filters.
• ADCUtils: Renamed *VoltageCheck*() to *VCCCheck*(), setADCMultiplexerAndReferenceForNextConversion() to setADCChannelAndReferenceForNextConversion() and changed signature of readUntil4ConsecutiveValuesAreEqual().
• Miscellaneous renamings and improvements.
• Added float to LongUnion.
• Added printRAMInfo() in AVRUtils.
• Fixed bug in HexDump.
• Documentation.

Miscellaneous improvements

• Added unions.
• Changed distance return value for overflow to 0.
• Miscellaneous improvements.

Initial release

0.8.0

Documentation