Delete unnecessary meta tags and re-order head element

[cevdetardaharan]

Detecting unnecessary head elements

X-UA-Compatible meta tag is for IE and IE is dead so it should be deleted, even browsers are giving warning.

<meta http-equiv="X-UA-Compatible" content="IE=edge">

twitter:* meta tags that have the same name as og:* meta tags aren't needed because twitter uses og:* meta tags as fallback: source

<meta name="twitter:title" content="{{ og_title | escape }}">
<meta name="twitter:description" content="{{ og_description | escape }}">

Re-ordering

Re-ordering based on priority would make browsers work faster and more algorithmic: source