Re-organize the project into a better hierarchy.

platform-independent/web-js/js/Makefile

@@ -0,0 +1,15 @@
+build: mkdir-es5 es5/mpw-js/pbkdf2.js es5/mpw-js/scrypt.js es5/mpw-js/mpw.js es5/setImmediate-polyfill.js
+
+mkdir-es5:
+	mkdir -p es5
+	mkdir -p es5/mpw-js
+
+es5/%: $*
+	babel $* -o $@ --presets es2015 --source-maps
+
+clean:
+	rm -rf es5 2>/dev/null
+
+update:
+	git submodule update --init --recursive
+	git submodule foreach git pull origin master