bower.json main files are wrong

[dotnetCarpenter]

In bower.json only iron-selector.html is specified, but iron-selector.html requires iron-multi-selectable.html, which requires iron-selectable.html, etc.
For this to work with any build tool all required files most be specified.

If you do bower list --path you will get:

'iron-selector': 'bower_components/iron-selector/iron-selector.html'

Expected output

'iron-selector': [
    'bower_components/iron-selector/iron-selector.html',
    'bower_components/iron-selector/iron-multi-selectable.html',
    'bower_components/iron-selector/iron-selectable.html',
    'bower_components/iron-selector/iron-selection.html'
  ]

Without specifying all required files, any build tool will not know which files to copy (or add to the pipeline).