Merge pull request #25 from Vido/master

Tests for AnalogInputCapable Boards
#23 rename all tests
#23 add __init__.py on tests
#23 rename more tests
#23 add coverage configurations
#23 remove onde run_tests
#23 add new runtest with py.test
PEP8
#23 fix build and add setup.py test command
#23 remove tests from coverage
#23 fix skip test if not have module
#23 add xfail tests
Wrong test class names
Merge branch 'master' of github.com:garoa/pingo
add tests on setup packages
add xfail for BeagleBoneBlack
PEP8
remove py.test genscript for setup
update setup.py to not use runtest.py
add Makefile command