Some Doc Typos

Fixed doc typos in Components and Scaffolding.
Another Typo

Fixed another typo pointed out by panahi.
update hide text to h5bp technique #2586
Typo Fixes for .mustache files

Added the doc typo fixes to the .mustache files as well.
Invert progress-bar-stripes direction
make font family mixins customizable with variables.
make brand links follow navbarLinkColor but also be customizable in advanced cases.
update docs to match variable addition.
update docs to match variable addition.
add /head
Added URL fix from #2643 - Thanks ctalkington
Could have sworn I added that 's'!
Added offset parameter to .makeColumn.
select last item in scrollspy if you've reached the bottom of the document or element
;)
typeahead should escape regexp special chars
if interval is false, do not autocycle the carousel
fire active event on active
active - onActivate
add activate to scrollspy docs