this is just a waste of cpu cycles, since telegraf converts all uints to
int64 anyways.

This makes sure that all redis metrics are present without having to use a hard-coded list of what metrics to pull in.

this may address, or at least log issue #1462

* add ability to read redis from a socket

* update CHANGELOG

master_last_io_seconds_ago added
role tag renamed to replication_role

fixes #1203

- Format code

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

This reverts commit 2af97cdb.

closes #356

fixes #331

Closes #283

Also make certain that the 'host' tag does not include the password for
security reasons

Closes #225

Closes #205

Fixes #178

see issue https://github.com/influxdb/telegraf/issues/74