Change Log (newest first)
	V1.2
		updated the manual to reflect all the changes
		merged in Eli Zupke's new organ sound.
		added a new "flute" sound, that can also sound quite un-flute-like
		split off the changelog into a separate file
		added a new "game" or "chiptune" sound.
		split the "west coast" sound into two presets; one ringmodulator and a
			wave-wrapped sine, due to it taking too much cpu.
		turned the supersaw into a pwm saw, as it was taking too much cpu
	V1.1
		Added a switch in the code to substitute your own modulator for the internal LFO
			for the pwm sounds (2 and 7);
		Added a 9th sound; an adaptation of the "West Coast Osc" code for the Grains module.
		More quantised mode fixing. (We had 1 more off-by-1 error than I thought...)
		Updated the manual to cover the new features.
		Clarified the relationship between the quantise mode and the "tune" knob in the manual.
		Various typos fixed, please excuse my dyslexia.
	V1.0
		Updated manual
		fixed bug where the mod&decay inputs stopped responding to signals while in shift mode
		Removed support for PCB version 1;
		Redid phase distortion sound (mode 5) to be way more interesting and efficient
		repeated checks for the gate through the main loop a few times as that's timing critical
		Fixed quantise mode again. Hopefully for real, this time. Sorry.
		Made wave-wrapper asymmetrical in mode 1 to preserve fundamental at all times
		fixed issues where quantise mode had 1 key too many, detuning everything
		sustain mode fixed
		Increased LFO range
		Reduced LFO depth
		use timer to measure time while holding shift
		fix jitter in quantise mode
		First attempt at scaling mod envelope with overall decay time
		display value while in shift mode
		Fixed issue with filter envelope not keeping up in rare cases
		Added square wave sound
		scale filter env max value by sustain level
		made max attack time longer
		Added manual section about updating the code
		Manual edits due to target market research, which was very important, professional and useful
		super-saw LFO control added
		removed sweep from hoover
		Added "philosophy" section to manual
		attack phase for mod env
		attack phase for filter env
		no more jumping values after going out of shift-mode
		only read knobs that have been moved a certain amount in shift mode
		store quantisation setting in EEPROM
		tuning quantisation option
		rough first draft of manual
		save filter & attack settings to EEPROM
		shift + decay = attack control
		shift + mod = filter control
		button "shift" function
		made extra analogue inputs for new PCB work
		redid noise sound
		found & fixed attack bug
		recalculated tuning table
		fixed 2nd order discontinuity in de phase dist. preset.
		fixed DC offset in the hardsync preset and anti-aliased the carrier
		Reduced resolution on tuned noise "mod" function to allow for more stable tones
		made volume env. fade to 127, instead of 0
		select button functionality
		split off the tuning stuff and led control to separate files
		selection knob auto scaling
		select sound at startup based on knob position
		remove traces of Little Synth keyboard stuff
		fixed bug in anti-aliassing of Hoover osc's 2&3
		started working on manual
		extended led control function to cover 16 values; 0-9,A-F
