Squash of:
* Include plugins in the report
* show plugin list in the UI
* moving metric and metadata templates into the probe reports
* update js for prime -> priority
* added retry to plugin handshake
* added iowait plugin
* review feedback
* plugin documentation
Fix a few bugs in the consul pipe router:
- Don't share a pointer
- Write nil to pipe when closing a bridge connection to ensure the connection shutdown.
- Ensure we shutdown bridge connections correctly
Add DynamoDB based collector
- Store compressed reports in dynamodb
Add SQS based control router.
- Uses a queue per probe and a queue per UI for control requests & responses.
Add Consul-based, horizontally-scalable, multi-tenant pipe router.
- Uses consul to coordinate each end of pipe connections replicas of a pipe service.
* New encoding format:
* Msgpack reports between probe<->app (smaller representation, faster to
encode/decode).
* Still use JSON between app<->UI (try to avoid making javascript deal with
mspack).
The app still suports publishing reports in both gob and JSON, not braking
backwards compatibility.
* Use compile-time generated marshallers/unmarshallers for higher performance. In
order to be able to skip code-generation for certain types, I included
https://github.com/2opremio/go-1/tree/master/codec/codecgen instead of
upstream until https://github.com/ugorji/go/pull/139 is merged.
* Encode/decode intermediate types using github.com/ugorji/go/codec.Selfer
for higher performance and reducing garbage collection (no temporary buffers).
