comment correctly positioned
Merge branch 'master' into 0.13
bump amber-dev used in template to ~0.2.0.
app.build.js does not need explicit paths mapping...

... for jquery[-ui], provided it uses newest amber-cli,
which uses amber-dev ~0.2.0, which find which of the files
actually exists in amber config and use that one directly in config.js.
Prelease 0.13.0-3.