Added a second EQ Effect per deck, alias to filter controlls
readded filter controll to the control picker menu
Added Appstream XML data. Needs to be reviewed
Added second ComboBox for Filter knob effects
Added Alias controlls to development tools
Load filter effect from dlgprefeq
Merge remote-tracking branch 'upstream/master' into flter_rack

Conflicts:
	src/effects/effectmanifest.h
	src/effects/native/bessel4lvmixeqeffect.cpp
	src/effects/native/bessel8lvmixeqeffect.cpp
	src/effects/native/bitcrushereffect.cpp
	src/effects/native/filtereffect.cpp
	src/engine/effects/engineeffectchain.cpp
Allow to select "None" as filter effect
Merge branch 'eq_rack2' into filter_effect

Conflicts:
	src/dlgprefeq.cpp
	src/dlgprefeq.h
	src/effects/effectmanifest.h
	src/effects/effectsmanager.cpp
	src/effects/effectsmanager.h
remove gcc warning in BaseTrackPlayer
Shade: some minor clean ups
Put different headings onto the combo boxes for EQ and filter
Merge branch 'eq_rack2' into filter_effect

Conflicts:
	src/dlgprefeq.cpp
	src/dlgprefeq.h
	src/effects/effectsmanager.cpp
	src/effects/effectsmanager.h
renamed filter function
remove getAvailableFilterEffectNames() in favour of getEffectNamesFiltered()
Fixed appstream.xml more fit to project. Changed description coming from 'debian/mixxx.sgml' and changed me from copyright to author also fixed correct email address
Changed 'Bulk BPM and beat detection.' to 'Beat and key detection' what should open to most people.
Changed '&#38; (HTML: &)' to and which I think correct
Every comma now have space after appearence
Deere skin: Add TooltipId to <Time> widget in the toolbar and move it to the outer right. Delete invalid <Battery> key.