update execo to v2.8.2

bin/funk_package/execo/__init__.py

bin/funk_package/execo/_version.py

bin/funk_package/execo/action.py

bin/funk_package/execo/conductor.py

bin/funk_package/execo/config.py

bin/funk_package/execo/exception.py

bin/funk_package/execo/execo-chainput

bin/funk_package/execo/host.py

bin/funk_package/execo/log.py

bin/funk_package/execo/process.py

bin/funk_package/execo/report.py

bin/funk_package/execo/ssh_utils.py

bin/funk_package/execo/substitutions.py

bin/funk_package/execo/time_utils.py

bin/funk_package/execo/utils.py

bin/funk_package/execo_g5k/__init__.py

bin/funk_package/execo_g5k/api_utils.py

bin/funk_package/execo_g5k/charter.py

bin/funk_package/execo_g5k/config.py

bin/funk_package/execo_g5k/kadeploy.py