WIP site scraping

Hi Elad

I've been working on the following method today to check the verification code.  I'm nowhere near done, but I wanted to check if I'm on the right path.

```
  def check_verification
    url = tracked_domain.url
    # Use HTTParty to fetch the HTML of the tracked domain.
    response = HTTParty.get(url)
    # Use nokogiri using XPATH to get the content of the meta tag and compare to current tracked domain verification code.
    doc = Nokogiri::HTML(open(url).read)
    vercode = doc.xpath("//meta")
    # return true or false
    if vercode == tracked_domain.verification_code
      puts "The Domain has been verified"
    else
      puts "This Domain is not verified"
    end
  end
```

Also in my ``` app/models/tracked_domain.rb``` file, should I require or include HTTParty and Nokogiri?

Thanks!