JS: update to latest BS3 build
bold links not semibold in alerts. Added classes for lg-pull, lg-push, lg-offset, sm-pull, sm-push, sm-offset. Tighten up buttons and form controls. Remove requirement of `.list-group-flush` when list groups are in panels

BS3 commits d46e645a0f19b24280bf700f4d4fb56caadb4409,
1583dd55e9f05275ee054884720dce2be8e2f07a,
173dac4e54281312ebb7ff993df20caffbc56840, BS3 commit
6b850132d056a136dc4734c4d68c9e1c23b7843e
bold links not semibold in alerts. Tighten up buttons and form controls. tighten up buttons and form controls even more

BS3 commits d46e645a0f19b24280bf700f4d4fb56caadb4409,
173dac4e54281312ebb7ff993df20caffbc56840
Remove requirement of `.list-group-flush` when list groups are in panels

BS3 commit 6b850132d056a136dc4734c4d68c9e1c23b7843e
Added ".col-sm-*" to the grid example per the description above the example. Added classes for lg-pull, lg-push, lg-offset, sm-pull, sm-push, sm-offset

BS3 commits cfacd228ebd7f52faa2dd85a20c3d2534094ee5b,
1583dd55e9f05275ee054884720dce2be8e2f07a
fixes 8955

BS3 commit 69f99201327662ec1bd0e15516a064e6dcc9236c