implementing first iteration of reboot after update for host components, totally not production ready yet
Merge branch 'master' of https://github.com/yadt/yadtshell into reboot
"re- adding possibility to stop hosts and first step at rebooting hosts after update"

This reverts commit 00a7b473affcee36cb11c810bde99d77bb059b7d.
Merge branch 'master' of https://github.com/yadt/yadtshell into reboot
complete update command with reboot (when necessary)
adding test for host that needs rebooting, explicitly setting the reboot_required attribute in tests
splitting lines for flake8 conformity
adding integration test for machine rebooting / polling
check host for all reboot-inducing conditions; pass thru failure in case of yum problems
correct service handling when updating/rebooting hosts
fixing -y handling due to short option name
Merge branch 'master' of https://github.com/yadt/yadtshell into reboot
hardening status against unreachable hosts, refactoring info tests for better error messages
dealing with python 2.6 legacy crap
fixing typo
avoiding host reboots when they should not be handled by the update
adding integration test to ensure that unhandled hosts are not rebooted
rebooting hosts only when the --reboot flag was used (to be inverted at a later date with --no-reboot)
hardening test against race conditions
minimal change to trigger travis rebuild of branch