Add docstrings
Replace tests module by tests package
Move MessageService to services.messages module
Refactor parser to services.parsers
Refactor code handling remote processes
Add unittest of parsers
Refactor tests into differents methods
Add test for output_filename
FIX issues of previows refactors
Add real output line to implement unittest
Add list of sample output lines for testing purposes
Use messaging service directly
Fix some TODOs related to logging
Move regex patters to classes
Rename method to _process_incoming_line()
Refactor Popen + communicate
Refactor _popen from _popen_and_communicate
Refactor checking of exit status
Refactor reading and processing of stdout of remote commands