Rework deploy scripts to correctly build and handle multiple environments.

Makefile

@@ -11,7 +11,7 @@ dist/personal-measure-api.tar.gz:
 
 dist/personal-measure-web.tar.gz:
 	-mkdir dist
-	TARGET_ENV=$(TARGET_ENV) make -C web build
+	(TARGET_ENV=$(TARGET_ENV) ./set-env.sh make -C web build)
 	tar czf dist/personal-measure-web-${VERSION}.tar.gz -C web/dist .
 	cp dist/personal-measure-web-${VERSION}.tar.gz dist/personal-measure-web.tar.gz