sysdbd: Reconfigure the daemon on SIGHUP.
sysdbd: Reconfigure the daemon on SIGHUP.

The current approach shuts down the backend collector thread and the frontend.
Then, the config file is parsed again and libsysdb's reconfiguration mechanism
is used to reconfigure all plugins.

sysdb/sysdb,sysdb/sysdb,tokkee/sysdb,sysdb/sysdb,tokkee/sysdb,tokkee/sysdb