user unfiltered samples if all EQ knobs are at the same position
Ramp Dry value on change
some code style fixes
A cpu and sound quality optimized version of the EQ
removed unused buffer
Merge remote-tracking branch 'upstream/master' into eq_rgbw

Conflicts:
	src/engine/enginefilterblock.cpp
	src/engine/enginefilterblock.h
Merge pull request #230 from daschuer/eq_rgbw

RGBW model EQ for auto "direct sound"
VC seeks have to be playpositions, not percentage positions.
Fix wpushbuttons not drawing on internal update if they don't have CSS style.
fix comment
Stacked skin: make mixer and vinyl toggleable
resize spinnies when hiding eq
BUG: show_4deck and show_mixer are not persisting.
Show 2 decimal places for bpms.
DN-MC6000MK2: Initial revision
DN-MC6000MK2: Map some controls and the VU meter LEDs directly
DN-MC6000MK2: Looping

- Loops: Manual, beat and beatroll
- Censor: Use reverseroll instead of reverse
- Scratching: Don't modify keylock mode
DN-MC6000MK2: Track loading

- Solo cue mix when loading a track (can also triggered manually
  by pressing Shift + Cue Mix)
- Slip mode fixes (still does not always work as expected)
DN-MC6000MK2: Samplers and various improvements

- 16 samplers (4 per deck)
- Hotcue fixes
- Sync mode switching improvements
- Use cue mix LEDs as track load indicator
- Delete obsolete filter controls
DN-MC6000MK2: Polishing

- Global shift state
- Slip mode fixes
- Looping improvements
- Cue button controls AutoDJ fade/skip
- Shift + play triggers stutter play
- Internal refactoring of hotcues
- Delete obsolete constants & triggers
- Minor changes
DN-MC6000MK2: Many MIDI mapping fixes

- Many MIDI mapping fixes, mainly for [Channel3/4]
- AutoDJ changes
  - Shift + Cue triggers skip_next
  - Shift + Play triggers fade_now
- Internal refactorings & cleanup