Conflicts:
	dist/css/bootstrap.css.map

add/update/summarize browser bug refs in Less comments

Remove holder.js references from syntax-highlighted example HTML

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Refs #11623

Refs #11266, #13098, #15415

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Remove reference to old fixed WebKit bug in Less comment.

Per https://github.com/twbs/bootstrap/issues/1969#issuecomment-36971094

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Our use of Holder.js in the docs is a mere implementation detail.
Don't want to confuse people into thinking Holder.js
is somehow required by the Thumbnail component.

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Remove #14972's entry from Wall of Browser bugs

Refs #14972

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Fixes #14990: Media bodies take up full width

Fix part of #15148.

Add Wall of Browser Bugs entry for #11266, #13098

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Add Wall of Browser Bugs entry for #15205

Closes #15205

Add warning to Customizer about Firefox bug

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Signed-off-by: Beatrice Peng <bpeng@pivotal.io>

Add docs for #15340

border-radius CSS property doesn't affect <select>s in some browsers.
Hence, @input-border-radius doesn't affect <select class="form-control"> in some browsers.
Closes #15340.

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Add woff2 font in readme.md