Updated README file
Added Disqus based comments to each additive page
Minor text changes
Setting language using disqus_config
Refactored loadComments function (Issue #27)

Disqus language can now only be 'en' or 'bg'. It seems at the
moment 'bg' is not supported.
Added comments on/off option in Config (Issue #27)
Added search glyph icon on additives list page
Minor text changes in FAQ
Updated config defaults
Fixed search input box layout
Changes in Disqus comments (issue #27)

Add: Comments should be placed in disqus category now
Change: Extended 'comment' property in Config. URL must be specified since
that is recommended on Disqus docs.
Fixed comments config issue.
Fix when loading Disqus configs (Issue #27)

Configs are now dynamically injected in a script tag when Disqus is first
loaded.
Minor syntax changes
Added news on home page

News will be active only for the defined period in app.js
Closed news now won't show until browser is restarted

A flag is set in the browser sessionStorage if user closes the news.
Additives and Categories menus now put directly in navbar