Added LED control button to test GUI
Make it work on the BBB
Remove crap
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Notes from meeting
Merge branch 'master' of https://github.com/szmoore/MCTX3420.git

Conflicts:
	server/actuator.c
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Change actuator code to turn on/off all leds
Merge pull request #37 from jtanx/master

Update control code
Todo: Must add issues outlined and reconsider use of syslog
Added Beaglebone code to sensors.c & actuators.c

So I've probably broken something here with my half-remembered CITS1002
code, but hopefully it works. I have added real analog/digital sensor
tests to sensors.c and real digital/pwm actuators to actuators.c. These
reference GPIO.c and pwm.c for functions.
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Add test gui
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Make code compile

Still needs work; GPIO1_28 (60) doesn't appear to be triggered by the actuator.
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Change control code - some bugfixes, plus stop threads in paused state
Image: Fix function type, try to ensure image is not cached, add buffer releases.
Add filename and line number to Log/Fatal functions

Discovered the __FILE__ and __LINE__ preprocessor defines which seem useful.
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Get BBB pin control working

Thank god it finally works.