Converting to Webpack. Stage 1.

webapp/Makefile

@@ -0,0 +1,18 @@
+.PHONY: build test
+
+test:
+	@echo Checking for style guide compliance
+
+	npm run check
+
+.npminstall: package.json
+	@echo Getting dependencies using npm
+
+	npm install
+
+	touch $@
+
+build: .npminstall
+	@echo Building mattermost web client
+
+	npm run build