changing Turnigy-Accucel-8 display pins based on Gyuris info
bugfix: Monitor::update()
fix: Imax b6 timer: charger displays 30:00 and stopwatch shows 30:05 #22
display Vb1 when discharging
imax b6 fix: set SETTINGS_EXTERNAL_T_DEFAULT to 0
fix: B7,B8 calibration
fix: removing Discharger::powerOn() during calibration
hex: 0.33
intermediate commit
Merge https://github.com/stawel/cheali-charger

Conflicts:
	hex/not_tested/cheali-charger-GTPowerA6-10-0.33.hex
	hex/not_tested/cheali-charger-GTPowerA6-10-0.33.sha1
	hex/not_tested/cheali-charger-Turnigy-A-6-10-200W-0.33.hex
	hex/not_tested/cheali-charger-Turnigy-A-6-10-200W-0.33.sha1
	hex/not_tested/cheali-charger-Turnigy-Accucel-6-50W-5A-0.33.hex
	hex/not_tested/cheali-charger-Turnigy-Accucel-6-50W-5A-0.33.sha1
	hex/not_tested/cheali-charger-Turnigy-Accucel-8-150W-7A-0.33.hex
	hex/not_tested/cheali-charger-Turnigy-Accucel-8-150W-7A-0.33.sha1
	hex/not_tested/cheali-charger-Turnigy-MEGA-400Wx2-0.33.hex
	hex/not_tested/cheali-charger-Turnigy-MEGA-400Wx2-0.33.sha1
	hex/not_tested/cheali-charger-imaxB6-clone-0.33.hex
	hex/not_tested/cheali-charger-imaxB6-clone-0.33.sha1
	hex/not_tested/cheali-charger-imaxB6-original-0.33.hex
	hex/not_tested/cheali-charger-imaxB6-original-0.33.sha1
	src/core/AnalogInputs.cpp
	src/core/Calibrate.cpp
	src/core/Screen.cpp
	src/hardware/GTPowerA6-10-original/cheali-charger-GTPowerA6-10.size
	src/hardware/Turnigy-A-6-10-200W/cheali-charger-Turnigy-A-6-10-200W.size
	src/hardware/Turnigy-Accucel-6-50W-5A/cheali-charger-Turnigy-Accucel-6-50W-5A.size
	src/hardware/Turnigy-Accucel-8-150W-7A/cheali-charger-Turnigy-Accucel-8-150W-7A.size
	src/hardware/Turnigy-MEGA-400Wx2/cheali-charger-Turnigy-MEGA-400Wx2.size
	src/hardware/imaxB6-clone/cheali-charger-imaxB6-clone.size
	src/hardware/imaxB6-original/cheali-charger-imaxB6-original.size