Fix #10948: Clarify navbar example target in docs.

BS3 commits: e246a97b91c08e064f83cd1e8219ff432458a460
Change all navbar example targets

BS3 commits: e8d7fb0737a129c916d0a8ec688e18902732aade
Change all masthead and toolbar example targets
fixes 10961: change variable names in grid docs

BS3 commits: 548603a9268cebcbef805b9dcd22b2da85ba643a
update gitignore to restore the ruby-version ignore and rename section to all docs stuff

BS3 commits: 61aa9a4f60e17b8fa9af690d88a4eff61a72f7f4
document .h1 thru .h6; fixes part of 10102

BS3 commits: a8afb4668802aaba50ca90e5862d91a750d90dc6
run grunt

BS3 commits: 704635818fb6c5518bc1bf2efca18f484c9f2d28
Fixes 10126: Update responsive test cases to properly highlight hidden class examples

BS3 commits: 969cb04acbdd1b5835acc203675c10ec2ba98c2c
fix 10986

BS3 commits: 730d7f0b13143061fd0607cbe6c303d7bd8b74ec
Updare grunt-jekyll dependency

BS3 commits: 65b5b2077653fd34a441979e53ab425ec0d72f1b
there's no reason for holder.js to be executable. upgrade holder.js to v2.1

BS3 commits: d820c6d22580119f6fb631c365c47f7be6e5db5b,
1a0df1fbd09d58713e19a62f2073ec2db2eb9839
use CDN for html5shiv instead of vendoring it; fixes part of 10989

BS3 commits: d72768a16abe811d987f2a38f980329260686114
use CDN for jQuery instead of vendoring it; fixes part of 10989

BS3 commits: 5e652332d1d5b5c3c5e86da0938d571795ce6161
fix 10805

BS3 commits: ca090aef0211663a11022e1f6b139850b7d222f1
use data-ride="carousel" in the docs & examples; fixes 11005

BS3 commits: ef1fc34e616a0efda482ec54247a84d589244d55
fix typo in Getting Started docs prose

BS3 commits: a96aff1e564227cc03f10aa757ff5c2b80c482b1
Customizer: include config.json in bootstrap.zip

BS3 commits: 58a47b6bfd274e7018316c0ea77ce0ca40a7e53f
Convert "Recess" to "RECESS"

BS3 commits: a216589056e2b7d116caf9e8be23ff0b2eca9099
Fixes 10959: round the .lead values down to nearest pixel via floor(). Half fix for 9855: Don't fuck with margins for open modal dialog on account of Lion non-scrollbars and inconsistencies elsewhere

BS3 commits: 1adbe2043a0ab6adad95e823397f6444730dfb83,
352532cd63a2d8e03ba7db806aa3bd110c023532