Improvements for v5

- Change readers to return record instead of `Tuple`.
- Cleanup event handlers.
- Complete reads when stream is closed.
- New `Internal` functions.

Author: jamesdbrock

spago-dev.dhall

@@ -18,6 +18,8 @@ conf //
   , "node-process"
   , "node-fs"
   , "console"
+  , "foldable-traversable"
+  , "parallel"
   , "partial"
   , "unsafe-coerce"
   , "control"

spago.dhall

@@ -24,7 +24,7 @@ to generate this file without the comments in this block.
     , "either"
     , "maybe"
     , "prelude"
-    , "tuples"
+    , "tailrec"
     ]
 , packages = ./packages.dhall
 , sources = [ "src/**/*.purs" ]