Updated homepage more
start with buttons
start on navbar
add the theme file derp
Merge branch '3.0.0-wip' into bs3_theme

Conflicts:
	dist/css/bootstrap.min.css
more twerks to the theme
Merge branch '3.0.0-wip' into bs3_homepage
Fix alignment of navbar header in fixed navbars
Docs cleanup for v3 prep
xs button is xs-er (fixes #9695)
fixes #9697
fixes #9642: open dropdown nav items get proper styling
fixed navbar static top borders
Fixed up examples more

* sticky footer side scrolling
* static and fixed navbar more similar
* min-height on static and fixed navbar examples to illustrate
differences

last two items fix #9702
switch to margin on navbar-nav to avoid stacking negative space reported in #9705
docs cleanup on naming to fix #9710
finish up second pass through docs nav, headings, organization, naming, etc (another run through at #9710)
basic cleanup on carousel example (fixes #9709 and #9700)
Justified nav now responsive; example updated accordingly (fixes #9708)
increase spacing on homepage links and social buttons (fixes #9706)