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
Merge pull request #65 from Vido/master

Some work on tests. Thanks, @vido!