updated libbeat

Correctly ignore command types we don't understand.

We used to glue packets together waiting for one that we understand,
but one side effect was that we pick the wrong start time for the
transaction. This fixes elastic#160.

Fill in the Query for HTTP transactions

version bump

version bump

Added information about tags in the default configuration file

Reordered to have packetbeat as default target

Added explicit support for X-Forwarded-For. elastic#60

go fmt

Disable redis monitoring in the default configuration.

This is to avoid issues where we sniff our own redis traffic and
multiply it. It's safer to disable it by default, and to have the
advanced users enable it.