Use 'make build'

Makefile

@@ -45,7 +45,7 @@ po2json:
 ########################################################################
 ## Release management
 
-jsmin: 
+jsmin:
 	./node_modules/requirejs/bin/r.js -o src/build.js && ./node_modules/requirejs/bin/r.js -o src/build-no-locales-no-otr.js && ./node_modules/requirejs/bin/r.js -o src/build-no-otr.js && ./node_modules/requirejs/bin/r.js -o src/build-website.js
 
 cssmin:
@@ -59,7 +59,7 @@ release:
 	sed -i s/version\ =\ \'[0-9]\.[0-9]\.[0-9]\'/version\ =\ \'$(VERSION)\'/ docs/source/conf.py
 	sed -i s/release\ =\ \'[0-9]\.[0-9]\.[0-9]\'/release\ =\ \'$(VERSION)\'/ docs/source/conf.py
 	sed -i "s/(Unreleased)/(`date +%Y-%m-%d`)/" docs/CHANGES.rst
-	grunt minify
+	make build
 
 ########################################################################
 ## Install dependencies