bootstrap 3.3.0

not minified (though filename suggests that).
This is because the minified version sucks to read when we need to
overwrite a certain rule in our custom css.
Make the article info small
remove Facebook open graph and twitter cards
reorder the html header a bit
indent favicon meta data in html
remove pigments code hilight
remove duplicate pages display on menu
remove MHH logo and vianna header
SITEURL needed for avatar
fix CC license link
update footer
white space fix
breadcrumps: hardcode Home page as icon
remove listing of subpages below content