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