newer GCC versions demand 'const' for PROGMEM variables
make the SOAP module compile again
Merge pull request #297 from eku/soap

SOAP module
fixed int16 overflow
Added Status Output of Backlight
Update ecmd.c
Update ecmd.c
Merge pull request #324 from florian-asche/patch-1

Added Status Output of Backlight
Update ecmd.c

Bugfix:
a) one closing bracket missing in each of these ECMD_FINAL lines
b) prototype for sprintf_P is declared in stdio.h, but this is not included
thx eku ;)
Merge pull request #326 from florian-asche/patch-2

Update ecmd.c
Merge pull request #323 from eku/fixedpoint

fixed int16 overflow
Implement MQTT protocol
Implement autoc4 hardware endpoint.

Control I/O pins and possibly DMX output by mqtt messages.

Includes autoc4-config files for the devices found throughout the C4.