Anycast-healthchecker

* Migrating from setup.py to pyproject.toml
* Fix a typo in the doc of Prometheus metric

* Adjust docstring of a method
* Set thread name for the Prometheus exporter
* Customize the interval that Prometheus exporters runs
* Make sure the process shutdowns cleanly

* Remove references to loopback interface
* Add support for exporting Prometheus metrics
* Remove deprecated validate\_ functions from puppet check
* Add an interface parameter to anycast\_healthchecker::check puppet type
* Set an interface on each check.conf file in puppet
* Use the network target on the Systemd unit file
* Add docopt module to requirements.txt

* Update year in \_\_copyright\_\_
* Rephrase a sentence to eliminate the usege of black word
* Typo fixes
* Fix misleading docstring
* Update Debian Changelog
* Exit if configuration file passed with '-f' doesn't exist
* Document what exception load\_configuration() raises

* Update year in \_\_copyright\_\_
* Simplify conditional statement
* Add support for custom Bird reconfigure per service
* Ensure correct variable name in Bird configuration
* Make docstring more clear
* Simplify return code from a function
* Add docopt in the requires-dist
* More clear log message
* Report information about the lock
* Fix typo in nagios check
* PEP257 compatible docstring for nagios check
* PEP257 compatible docstring for nagios check
* Log stack-trace when a thread dies
* Change the log severity to critical
* Call super in ServiceCheckDiedError
* Rename exception ServiceCheckDied to ServiceCheckDiedError
* Exit main program when a thread dies
* Update Copyright
* Update docstring/comment
* Remove unnecessary coding config
* Add Maximilian Wilhelm to AUTHORS
* Switch to integer for some default values
* Simplify loading default configuration
* Add support for delaying the 1st check
* Fix typo in README
* Rephrase a sentence
* Remove the dependencies to daemon and lockfile
* Disable pylint warnings
* Add configuration for building Debian packages
* Remove unused method \_update\_status

* Make the JSON formatted logs more compatible with syslog