add more arguments for polymer-transformer

[sigmundch]

Allow passing arguments in the pubspec.yaml file that let you configure options of the polymer's transformer plugin. For example, whether to change the html to use a .js file, or a csp .js file.

Here is an idea for what the options format could be:

transformers:

• polymer:
      entry_points: web/index.html
      js_only: false # is true by default
      csp: true # only used when js_only is true

[jmesserly]

minify too, so we can emit ".min" polyfills

[sigmundch]

csp/js parameters were added a while back. Now are are also using the mode (release vs debug) to choose one polyfill or the other (added in r30164).

That feature is currently disabled until issue #14720 is resolved.

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Removed this from the Later milestone.
Added this to the m8 milestone.
Added Fixed label.
Marked this as being blocked by #14720.

[sigmundch]

Added Triaged label.

[sigmundch]

Issue #14161 has been merged into this issue.

[sigmundch]

Removed this from the m8 milestone.
Added this to the M9 milestone.

[clayberg]

Removed this from the M9 milestone.
Added this to the 1.1 milestone.

[sigmundch]

Removed this from the 1.1 milestone.
Added this to the 1.2 milestone.

[sigmundch]

This was fixed sometime ago in 0.10.*.

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Added Fixed label.