upon reload send a SIGTERM first, then a SIGKILL as a last resort #48
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fixes #47
This changes the shutdown process when a reload is triggered to a graceful SIGTERM, followed by shutdown_interval, then SIGKILL if necessary. It also modifies the SIGINT process to wait shutdown_interval seconds instead of reload_inteval seconds and then issues a SIGKILL instead of a SIGTERM. Summary:
Ctrl-C -> SIGINT -> shutdown_interval -> SIGKILL
file change / reload -> SIGTERM -> shutdown_interval -> SIGKILL