rouster-0.63

• new features
  • did_exec_fire? helps confirm your Exec resources are only firing when you want them to
• enhancements
  • better handling for deltas functionality on machines that do have standard OS flag files (#88)
  • catching Errno::ECONNRESET in is_available_for_ssh?makes it more robust
• bug fixes
  • typo in a rescue related to is_available_via_ssh? (#86)
  • off-by-one error in reboot wait attempts (#86)
  • wrong exception / failure caused by validate_port error when a specific interface is specified, and the port is not open (#89)

thanks to @pabloav for his contributions