Merge pull request #12972 from twbs/cleaner-shrinkwrap

Exclude `resolved` from npm shrinkwrap to avoid irrelevant changes
Remove redundant parens
Update .hide-text() comment
Rename generateRawFilesJs to generateRawFiles
Remove redundant _config.yml quotes
Merge pull request #12980 from ZDroid/config-yml-quotes

Remove redundant _config.yml quotes
grunt
Fixes #12966: Ensure icon font vars are loaded into Customizer
Merge pull request #12976 from ZDroid/comment

Update .hide-text() comment
grunt
Fix comment
grunt dist
fix #9342
grunt
Merge pull request #12982 from twbs/fat-9342

fix #9342
fixes #9836
grunt
Merge pull request #12983 from twbs/fat-9836

fixes #9836
Merge branch 'master' into sr-only-focusable

Conflicts:
	dist/css/bootstrap.css
document position relative firefox bug; cleanup some stuff in the browser bugs page