Automatic PYTHONPATH
Better directory structure
First tests

- Reset log_pipe.py and config.ini
- First tests for node.py
PEP8 test_node.py
Adding py.test in travis job
Added requirements.txt for travis
Disabling coverage

- Have to find the correct version used by travis
Converting ISO 8859 to UTF8
Move tests to root folder
More tests
New dependency
Downgraded tests for travis py.test version
Missed one
Merge pull request #12 from awailly/tutorial

Test integration and better structure