optimize breadcrumb. delete typeahead style. Move `hr` to scaffolding.less (out of type.less) and simplify styles. Add tfoot back

BS3 commits 3279181f4253eb37cae61ecc1a3842c3d559ea49,
dd691b5c3687d706969fe05b8b2e04ece4558d41,
88a266b800a74b8445d06ac2fcb70ab97f035dfd
61823dbff1377443203f6ef6a98b8202b57abb29
Add tfoot back

BS3 commit 88a266b800a74b8445d06ac2fcb70ab97f035dfd
Remove more Glyphicons

BS3 commit 95655e72754b9450d04108593f60647cf2e2241c
Remove further mentions of Glyphicons

BS3 commit 817972724afa3e8f12d6a1376820490d3c430184
Remove more Glyphicons. optimize breadcrumb

BS3 commits 95655e72754b9450d04108593f60647cf2e2241c,
3279181f4253eb37cae61ecc1a3842c3d559ea49