Add makefile and lodash.

Makefile

@@ -0,0 +1,36 @@
+# See the README for installation instructions.
+
+NODE_PATH ?= ./node_modules
+# JS_COMPILER = $(NODE_PATH)/uglify-js/bin/uglifyjs
+JS_BEAUTIFIER = uglifyjs -b -i 2 -nm -ns
+JS_COMPILER = uglifyjs
+LOCALE ?= en_US
+
+all: \
+	iD.js \
+	iD.min.js
+
+.INTERMEDIATE iD.js: \
+	js/lib/d3.v2.js \
+	js/lib/lodash.js \
+	js/lib/jxon.js \
+	js/lib/underscore.js \
+	js/iD/id.js \
+	js/iD/Connection.js \
+	js/iD/Util.js \
+	js/iD/actions/*.js \
+	js/iD/graph/*.js \
+	js/iD/renderer/*.js \
+	js/iD/ui/*.js \
+
+iD.js: Makefile
+	@rm -f $@
+	cat $(filter %.js,$^) | $(JS_BEAUTIFIER) > $@
+	@chmod a-w $@
+
+%.min.js: %.js Makefile
+	@rm -f $@
+	$(JS_COMPILER) < $< > $@
+
+clean:
+	rm -f iD*.js