fix part of 13111: hide the docs nav on small and below devices

BS3 commits: 508d9f0d65ca215dfdfca6aa8cdd877f8dfebd11
fixes 13346: add a variable for .dl-horizontal's offset

BS3 commits: c7cd63107b551ddb8fe201340f1fa9cbe97f8af0
fixes 13347: make striped progress bars its own class

BS3 commits: 2a380f6bd8c4f96ff59de88841968fd538caf538
Fixes 13400, 13415: actually document the existing practice for links in panel headings

BS3 commits: 02642350f807c1431e686f03a97c0067fc0a2b51
grunt dist
rewrite striped and active to deprecate the parent selectors, change the docs

BS3 commits: 99f176e7ec678b4c9ea4fc973135d39a4553feab
Nuke equal height columns example; got a few bugs that make it not ready for prime time in v3.2

BS3 commits: bd541083f14f8293bc327255c17da4f376443d02
Update JSZip to v2.3.0.

BS3 commits: 0418c7678de442c06cd7b530482151d02e06ee63
Always use preserveComment: 'some'

BS3 commits: 4686d1483b3167c0b21097a97682c514b8f4e972
grunt, grunt

BS3 commits: 11cf54f9df61738d15078cf6eba25a9a26f584be,
d222c21f842812088060be725d24213c7202c35f
grunt. rewrite striped and active to deprecate the parent selectors, change the docs, grunt, grunt, Run `grunt`.

BS3 commits: 74982cf101a8ca8e15c04e4f873d6b56e02c6c7c,
99f176e7ec678b4c9ea4fc973135d39a4553feab,
162a27f67a988c37a55d476899e62b99cde8c969,
d222c21f842812088060be725d24213c7202c35f,
abe7afd87ae1e83d509a93ddafa91c79915a2bc8
grunt, grunt, grunt, grunt

BS3 commits: 11cf54f9df61738d15078cf6eba25a9a26f584be,
74982cf101a8ca8e15c04e4f873d6b56e02c6c7c,
162a27f67a988c37a55d476899e62b99cde8c969,
d222c21f842812088060be725d24213c7202c35f
grunt, rewrite striped and active to deprecate the parent selectors, change the docs, grunt, Update JSZip to v2.3.0.

BS3 commits: 74982cf101a8ca8e15c04e4f873d6b56e02c6c7c,
99f176e7ec678b4c9ea4fc973135d39a4553feab,
d222c21f842812088060be725d24213c7202c35f,
0418c7678de442c06cd7b530482151d02e06ee63