WPushButton can be connected to a dedicated indicator CO, + Some
refectoring for code style.
Sending allway ..Up() signal when a pushbutton is released
Introduced LONGPRESSLATCHING button Syle
Removed <RightClickIsPushButton> because it is not needed.
reverted changes, not raleated to LONGPRESSLATCHING
Create long-press latching mode for pushbuttons
Make latching simply the opposite of powerwindows
Create long-press latching mode for pushbuttons
Make latching simply the opposite of powerwindows
Add testing -- fails
try to use mixxxtest with gui on.  FAIL
Fix wpushbutton latching tests
revert a remaining unrelated change
Merge remote-tracking branch 'ywwg/long_press_latch' into longpresslatching

Conflicts:
	src/control/controlbehavior.cpp
	src/control/controlbehavior.h
	src/controlpushbutton.h
	src/widget/wpushbutton.cpp
	src/widget/wpushbutton.h
Initialized m_bXXForcePush for making the test succeed
removed unused timer load
Merge pull request #109 from daschuer/longpresslatching

Longpresslatching