`config` is already a pointer, don't get it's address.
Add PayloadFormatter to pass payload contents directly into ES.
Merge pull request #394 from mozilla-services/features/es-payload-only

Features/es payload only
Update changelog and docs.
Merge branch 'dev' of github.com:mozilla-services/heka into dev
Issue #261 Add protobuf support to LogfileInput
Emit a warning instead of barfing on development versions of go.
Better output.
Merge pull request #396 from mozilla-services/features/support-go-dev

Emit a warning instead of barfing on development versions of go.
Check the buffer capacity before re-allocating
Issue #261 move the message field initialization to the payloadParser
Merge pull request #395 from mozilla-services/issue_261

Issue #261 Add protobuf support to LogfileInput
Merge branch 'dev' into features/new-dashboard