Use modal window to display help in toolbar configurator

[Olek Nowodziński]

Changes in ​branch:t/13207 and corresponding branch in samples-framework.

[Piotrek Koszuliński]

1. The PicoModal license must be included - both in the samples framework and in the ckeditor-dev. If you do the 2nd point, then samples framework will be ok. In ckeditor-dev we must reorganise licenses and I'll report a separate ticket for this.
2. I think that we should install PicoModal using npm in samples-framework. For many reasons such as easy upgrading, having access to source code and keeping a right license there.

[Piotrek Koszuliński]

I pushed one more commit to t/13207 in samples-framework and rebased t/13207 in ckeditor-dev.

[Olek Nowodziński]

Thanks R. I'll go back to this task once I'm done with high priority issues.

[Olek Nowodziński]

Updated both branches:

• Used picomodal from npm.
• Updated SF docs.
• Updated ckeditor-dev gruntfile.
• Compiled new sf.js file.

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In ckeditor-dev we must reorganise licenses and I'll report a separate ticket for this.

Waiting for feedback regarding this comment.

[Piotrek Koszuliński]

Merged to major with ​git:3b624b6 and to master in samples-framework: ​https://github.com/cksource/samples-framework/commit/965cec75c0d