Add {{ SITEURL }} to all URL

I do not want to rely on `/article.url` scheme. I think it is better to
add {{ SITEURL }} to it.
Fix spelling mistake
Update Tipue Search to 3.0.1 from 2.1
Update Tipue Search CSS
Fix tipue search CSS
Fix Search template
Update style sheet to use Garamond for headings
Fix indentation
Update Tipue Search settings
Add support for JSON and Live mode searches
Use min version of tipuesearch
Remove tipuesearch.js from repository
Update tipuesearch CSS style
Remove static files that are not used

I load bootstrap from CDN
Add style for typogrify-ed ampersand
Update Mailchimp style
Add Favicon links
Check for LANDING_PAGE_ABOUT before accessing its members
Fix bug that will not print project url correctly
Update CSS style of tipue search results