Fixing reference to uri append path #287
                
     Open
            
            
          
  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  Outdated suggestions cannot be applied.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.
  
    
  
    
The current minimum version of Elixir is 1.13, but includes depends on
URI.append_path/1which isn't available until 1.15. This PR checks the Elixir version at runtime and either uses the new API, or uses a version of that implementation copied directly in the source here.The idea is for this to be used temporarily until the minimum version of Elixir is raised to at least 1.15.
The doc tests were not running for us, so we also fixed those while driving by.