Prevent user to misconfigure sleep after wake

Ensure that I_DELAY_PREVENT_SLEEP_AFTER_WAKE  is never smaller than 300s
(otherwise the server may always shutdown just after booting if other
parameters are set incorrectly)
readme: report from logs and disclaimer
config.sh: version updated
Merge remote-tracking branch 'origin/master' into exp_backup_remote

Conflicts:
	manageAcpi.sh