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

Correction in the documentation, add the brand-primary true color in comment and woff2 glyphicons

Make skip link look less "bare bones"

Additional markup for the skip link (to ensure it has the same effective
width as the main content, and to provide an outline around just the
link text) plus some basic styles...make it look a bit more in keeping
with the overall look and feel of the docs.

bump grunt-saucelabs to ~8.4.0

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bump remarkable to ~1.5.0

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use npm-shrinkwrap ^200.0.0

Revert "fix typo in carousel doc"

fix typo in carousel doc