Unitttest for StrKeyDict
Based on StrKeyDict Doctests
Test for _read_cpu_info
Any test is better then None. Flat is better than nested.
Organizing RPi module
MCP3008 is a pingo.part. It has nothing to do with RPi driver.
The examples are specific to RPi, bacause they were written before the
Autodetect.
Level1 ANALOG bug fix
Testing auxiliary methods form Board