Update dependencies.
Break up docs into includes. Fixes #13055: Mention outdenting more

BS3 commits: 2a43e7e78a59c70e217383c12c9ef0482cabb163,
bdb70fa471965728609d86c001384791fa44398b
Rename and organize nav partials for cleaner file structure

BS3 commits: b004c9ac393671489720be06739f01e5c1bec7fe
Update gruntfile to point to new customizer nav, run grunt

BS3 commits: 43cf003f9a0648787ab0285ebec866b1a7263c8a
grunt

BS3 commits: b3f30bb70efc5211520d7a55596becebc5d14662
use @ssorallen's blob support test in customizer

BS3 commits: 1ff6d33aa87aea3e9bd028839e32fa2b9eb99ba3
more precise description of browser bug. Mozilla is trying to fix the <input> line-height bug; Yay!

BS3 commits: e87c272ab445028cbd991834670ee9d2ec1bc589,
cb3f3926d79935f5b38611c10e7109b380df2c4f
copyedit responsive-embed.html

BS3 commits: 4d859d177a30b3d6c01e77343118f6c0246cd290
Add Bower package description

BS3 commits: 1c6d303b766021f295cdf6dc322e005583af9b58
pass grunt into generateRawFilesJs instead of require()ing it

BS3 commits: dcffbbab61fe717f5d379d417a5789b92a6ec488
Add build-glyphicons-data log

BS3 commits: 86dfcd1a96396fba1e65d9ffad3c34a5d8dc41a6
build. Fat fix 12983

BS3 commits: dd7cab84f66892ce53f0b7a9d8bf6981033f7ce2,
c6ab3fc7d84450232f3024207015743ecdd929a4