pass payload as StdIn to task runner #648
                
     Merged
            
            
          
  Add this suggestion to a batch that can be applied as a single commit.
  This suggestion is invalid because no changes were made to the code.
  Suggestions cannot be applied while the pull request is closed.
  Suggestions cannot be applied while viewing a subset of changes.
  Only one suggestion per line can be applied in a batch.
  Add this suggestion to a batch that can be applied as a single commit.
  Applying suggestions on deleted lines is not supported.
  You must change the existing code in this line in order to create a valid suggestion.
  Outdated suggestions cannot be applied.
  This suggestion has been applied or marked resolved.
  Suggestions cannot be applied from pending reviews.
  Suggestions cannot be applied on multi-line comments.
  Suggestions cannot be applied while the pull request is queued to merge.
  Suggestion cannot be applied right now. Please check back later.
  
    
  
    
this should fix #628 .
There is an unnecessary type change from
string reader -> string (api/server/runner.go)
https://github.com/iron-io/functions/blob/master/api/server/runner.go#L211
and then to string -> string reader (api/server/runner.go)
(this commits change)
Hmm, maybe actually for async runner, reading/consuming the reader is necessary.
And passing as another reader is necessary to keep compatibility with sync runners.