* Correctly unpack protocol commands

* Repair emulator compilation

* Make tick.c atomic

* Replace tabs with spaces

with INVERT_ENABLE=1 when making

* Added colored power buttons

* Added power graphics to makefile
Removed white power button

* Ensure power button state is updated

* Fixed wrong reference to on/off image size

* Added POWER_OFF_VISIBLE and POWER_COLORED options

* Added uncolored graphics

* Rework protocol handling

* Repair the emulator

* Update dpsboot protocol handling

* Correct dpsboot's rx buffer size

Added DP50v5A

* added tcp comms to dspctl

Travis integration

* Changed merged icon to "CL"
* Convert "Merged" to "CL" throughout the repo

This is to resolve #129

* Add support for debouncing the buttons

* Start adding icons for function generator

* Add support for signal generator.
This adds support for icon selection in the UI (the signal type: either square wave, saw, or sinus)
Also fix issues with unit different than volt or ampere
Convert some magical values to define so it's easier to understand what they mean.

display brightness control; currently only dpsctl allows to set brightness level; value is saved in past (#141)

* implement OVP

* finalise overvoltage protection

* Fixes #96

* change constant current calibration to not use a load resistor

* add thick wire requirement to calibration routine