Remove execute permission on fonts.
Update source maps info in README.md.
Merge pull request #15305 from vsn4ik/fix_fonts_permission

Remove execute permission on fonts.
Merge pull request #15306 from vsn4ik/whats_included_readme

Update source maps info in README.md.
Repeat warning comment about keeping "What's included" sections in sync

Refs #15238
[skip sauce]
Customizer: Catch and properly report compile errors that Less.js's toCSS() can throw.

Currently these errors are only reported in the JavaScript console, not in the Customizer UI.
Refs #15296

[skip sauce]
[skip validator]
Merge pull request #15309 from twbs/fix-customizer-compile-err-reporting

Catch and properly report compile errors that Less.js's toCSS() can throw
Merge pull request #3 from twbs/master

update repo