Change to use meta-tag "og:title" as default for url handlers, meant for social media sites, but useful for bot also. If the tag isn't found or empty, fall back to <title> -tag.

Removed handlers using the tag already (and some broken/outdated handlers).
Updated Alko -handler.
alcohol content to alko -handler
Merge pull request #111 from kipe/url_handlers

Change to use meta-tag "og:title" as default for url handlers