added more tags
                'og:image',
                'article:author',
                'article:publisher',
                'og:type',
                'og:site_name',
                'og:locale',
                'article:tag',
                'article:section',
                'fb:admins',
                'fb:app_id',
                'twitter:card',
                'twitter:site',
                'twitter:domain',
                'twitter:creator',
                'twitter:image:src',
                'twitter:description'
    removed leading spaces
    removed extra new line at the end
    @fortasse helped a lot with these changes
fix
Merge pull request #6 from adrelanos/moretags

added more tags
Merge remote-tracking branch 'origin/master' into fix-title-append

* origin/master:
  fix
  added more tags                 'og:image',                 'article:author',                 'article:publisher',                 'og:type',                 'og:site_name',                 'og:locale',                 'article:tag',                 'article:section',                 'fb:admins',                 'fb:app_id',                 'twitter:card',                 'twitter:site',                 'twitter:domain',                 'twitter:creator',                 'twitter:image:src',                 'twitter:description'     removed leading spaces     removed extra new line at the end     @fortasse helped a lot with these changes
Merged property check from new tag types.