Moves idpe.QueryService into platform/query.ProxyQueryService
Splits the Request into ProxyRequest and Request.
Changes query.QueryService and query.AsyncQueryService to use a Request
type. This means that the Compiler interface is consumed by the service
to abstract out transpilation vs Flux compilation vs raw spec.
The transpiler handler is removed.
There are separate http handlers and service implementations for each of
the three query services.
Query logging types are moved into platform.
The ResultIterator now expects Cancel to always be called.
The fluxd binary exposes the query endpoint specified in the swagger
file.
Running "dep ensure" no longer always writes out the Gopkg.lock file.
As such if somehow Gopkg.toml has a newer modified time than Gopkg.lock
the make command would always run "dep ensure" and all other build
steps.
This change makes it explicit that after a dep ensure run that
Gopkg.lock is newer than Gopkg.toml.