Add Bower package description
use @ssorallen's blob support test in customizer; fixes #12617
regenerate customize.min.js
Merge pull request #12773 from twbs/customizer-compat

Use @ssorallen's blob support test in customizer
more precise description of browser bug
Mozilla is trying to fix the <input> line-height bug; Yay!

See https://bugzilla.mozilla.org/show_bug.cgi?id=697451#c43
copyedit responsive-embed.html
fix <mark> raw source to match live example

#12956 errata
fix description of <mark>

#12956 errata
Merge pull request #13064 from ZDroid/description

Add Bower package description
pass grunt into generateRawFilesJs instead of require()ing it
Add build-glyphicons-data log

Closes #12987
Merge branch 'ZDroid-grunt-glyphicons'