Add correct target directory for bower files during `bower install`

[1zaak]

Not sure why this is not already in the default app, or is it because of my local bower configs?

Anyway, in the default app, bower install installs into client/bower_components which fails to run the app during polymer serve. So I just created a .bowerrc to make it install into the root folder's bower_components.

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[keanulee]

Hi @1zaak

directory defaults to bower_components already (https://github.com/bower/spec/blob/master/config.md#directory), so this shouldn't be required. You may have a .bowerrc in an above directory (https://bower.io/docs/config/#placement--order) which is changing this default behavior.