* Fixed a bug in the performance counter query when run against SQL Server 2016 SP1-CU2. The performance counter DMV contains duplicate entries which are not handled by the query.
* Adding more stats related to workload groups.
* Adding new RG stats, removing "host" tag
* Removed workload group query
* Fixing some 2008 compat issues, removed the host field from the result set.
* Adding fixes for SQL Server 2008 compat around RG columns. Also converted perf counter query to support named instances.
* Included system databases in server properties, added backup/restore throughput counter, error counters, and user settable counters.
* Added more resource governor counters.
* Added Target and Total Server Memory counters.
* Removed the c_type tag from the performance counters query, added more documentation instead.
Fixed a problem with sqlserver input where database properties are not returned by Telegraf when SQL Server has been set up with a case sensitive server-level collation.
* Added bugfix entry to CHANGELOG.md for sqlserver collation input fix.
I added Rows/Logs max size counters for tracking databases that do not have autogrowth enabled. The counters return numbers in 8KB pages since there are a few special values (such as -1 for no max size) that can't directly be multiplied by 8192 to get size in bytes.
Also added Rows/Logs size in 8KB pages for comparison from the same system table. Even though it returns the same size as sizes from sys.dm_io_virtual_file_stats which are already collected.
This will basically make the root directory a place for storing the
major telegraf interfaces, which will make telegraf's godoc looks quite
a bit nicer. And make it easier for contributors to lookup the few data
types that they actually care about.
closes#564