* collectd: Added support for a `Flush' command in the unixsock and
exec plugins. This command can be used to force a plugin (or all) to
flush its values to disk.
+ * collectd: Thresholds can now be configured to apply to one data
+ source only, making it possible to configure different thresholds
+ for each data source.
* apache, nginx plugins: Added the possibility to disable host and/or
peer verification.
* ascent plugin: The new ascent plugin reads and parses the statistics