v3.0.1

• Switched to go1.14
• Fixed build scripts
• SIGHUP support for reloading all configurations
• Spec changes now cause warning logs instead of trying to automatically trigger a restart.
• take_actions_only_if_running: true configuration option added, which instructs certmgr to not try to restart a downed service when a new cert is created
• Graceful shutdown support added to prevent certmgr from exiting while writing files
• Splay logic added through configuration variables initial_splay and interval_splay, delaying when certmgr does interval checks. This prevents all of your certmgr instances from waking up at the same time
• SpecLoad and SpecFailure metrics have been removed (they are unused without opportunistic reloading). Remaining spec metrics moved into cert namespace
• Exported metric spec_next_wake_timestamp showing when certmgr will wake up to do its next check
• Dropped spec_watched_total metric, it is redundant
• Major restructuring to split certmgrd internals from certmgr lib code to produce a useful api