NEWS.md: fill in details from the previous releases
ADD
NEWS.md
+User-visible changes in make-hardener:
+
+## Release 0.0.4 (20-Feb-2019)
+
+* Publish both es6-module and CommonJS versions, use package.json keys to
+ distinguish. #10
+* Tolerate `harden()` of objects with null prototypes. #11
+
+
+## Release 0.0.3 (19-Feb-2019)
+
+* Change API to take an iterable (`makeHardener([a,b])`) instead of a splat
+ (`makeHardener(a,b)`). #3
+* Use the name "fringe" to talk about the edge of the frozen graph.
+* Don't commit to the new fringe until prototype checks have passed. #4
+* Export a single default function, rather than a composite object named
+ `makeHardener`. Imports must be changed to match. #8
+
+
+## Release 0.0.2 (14-Feb-2019)
+
+Initial release

NEWS.md: fill in details from the previous releases