Adding dummy keylog_parser.py.

This file will be a standalone application to parse output of dkb.py,
and launch any command specified in the config file (parsed by
config_parser.py, see config_file_parser branch for more infos on this part
of development).
Merge branch 'master' into keylog_parser
Main loop of keylog_parser.py
Changement du script de lancement et renommage de fichiers:

Le script de lancement a été réécri en python3.
Par la même occasion, et pour plus de clarté, dkb.py est renommé en
keyboard_logger.py
Implementing the buffer in keylog_parser.py
Changing relative paths to basenames :

dkb, keyboard_logger.py and keylog_parser.py must be in $PATH
Converting buffer to str before print
adding an empty line verification
Moving comments
Moving comments
Using asyncio to parse Stdin

Defining class AsyncReader which basically starts an infinite loop
reading stdin. Each time it encounter '\n', it pulls the line to a FIFO
buffer of 4 lines, and tasks a coroutine to parse the buffer (currently,
it just print it)

On Scroll_Lock as stdin, it quits.
making the program print 'Scroll_Lock' on exit:

to permit keylog_parser.py to quit properly.
Adding function DetailedWriterFirstStage.writeKeycode()

And execute this function in a new process to pass the keycode
asynchronously to keylog_parser.py
adding Ctrl+C (SIGINT) handling in keylog_parser.py
Correcting a typo in debug message
removing useless ; in dkb
removing useless import of sys in dkb