Add assets_ignore init keyword, regex filter for the assets files.

[T4rk1n]

Resolves #306, add a regex ignore filter to the assets auto include on the index.

import dash

app = dash.Dash(assets_ignore='.*ignored.*')

The ignored assets are still available from a request context (a callback):

flask.url_for('assets', filename='ignored.css')

They won't work with #309 .

[chriddyp]

They won't work with #309 .

Let's get #309 first, then revisit this one

[radekwlsk]

@chriddyp @T4rk1n As #309 is released in 0.24.0 as I believe, I assume this one is no longer ready for release and has to be updated?

[T4rk1n]

They won't work with #309 .

I meant that they won't have the query string with the modified time when you get them from somewhere else than the assets includes.

[chriddyp]

💃