More specifically, introduce a `scheduleAfter` argument to
Store.CreateTask. The previous behavior was leaving a new task's meta
LatestComplete value set to zero, which meant that the first run of a
schedule would start from 1970. Now, it's set to time.Now unless
otherwise specified.
Updates #595.
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.