Fix a bug related to unicode and struct
ping only once before connection if node respond
add pakbus tests
Merge branch 'master' of github.com:SalemHarrache/PyCampbellCR1000
pep and pyflakes
prepare release 0.2
use UTC datetime by default
prepare 0.2 release
takken into account last commit (UTC datetime by default)
release 0.2
update for 0.2
add the about section in the documentation (for pdf version)
add get_raw_packets function to see raw packets and debug
add file_download to send a file from client to device. But not implemented yet