TASK27: Add Averaging object to BacnetNode library
https://rally1.rallydev.com/slm/detail/tk/17336061007
COMPLETED TASK28: Implement sliding window buffer for averaging
https://rally1.rallydev.com/slm/detail/tk/17336061145
Completed TASK27: Add Averaging object to BacnetNode library
https://rally1.rallydev.com/slm/detail/tk/17336061007
Completed TASK29: Add limited intrisic reporting to Analog Value 

Task-Url: https://rally1.rallydev.com/slm/detail/tk/17880231081
TASK30: Averaging object of Averaging node should be linked to Analog
Value of Averaging node 

Task-Url: https://rally1.rallydev.com/slm/detail/tk/17880363060
Completed TASK30: Averaging object of Averaging node should be linked to
Analog Value of Averaging node 

Task-Url: https://rally1.rallydev.com/slm/detail/tk/17880363060
TASK31: Change arduino bacnet app over rfm12b to use averaging node
instead of bacnet node 2 thermos 

Task-Url: https://rally1.rallydev.com/slm/detail/tk/17949992846
TASK32: Allow compilation to arduino leonardo 

Task-Url: https://rally1.rallydev.com/slm/detail/tk/18066599692
Merge branch 'feature-averaging_object' into develop