Merge branch 'master' of https://github.com/spark/core-common-lib
Merge branch 'master' of https://github.com/spark/core-common-lib

# By Matthew McGowan (2) and others
# Via Zachary Crockett (4) and others
* 'master' of https://github.com/spark/core-common-lib:
  Fixed OTA 256 byte chunk issue
  Uncomment debug logging and remove commented extern
  Only whitespace changes, to clarify the real code changes
  Fixed Build Error
  removed interrupts in socket_active_status.
  hacking around with spi bus arbitration.  doesn't get past white LED - may be because of debug statements?
factored out led handling so that the hardware-neutral code is in a separate project (can be tested by GCC unit tests).
the hardware-dependent code (still in hw_config.c) will be tested by ARM gcc tests running on the hardware.
Merge branch 'master' of https://github.com/spark/core-common-lib into feature/travis-ci
Getter for RGB led brightness. Fix for fade scale, led toggle, and LED_RGB_Get.
Integration and unit tests pass.
Merge pull request #35 from spark/feature/travis-ci

separate out hardware-independent LED code