<meta name="verify-v1" content="111111111111111111" />
That's for the Google webmaster tools. Sign up with that service and they give you that code.
<meta name="doc-class" content="Living Document" >
This indicates that the document is ready to be viewed (i.e. is finished).
<meta http-equiv="imagetoolbar" content="no" >
Stops the IE image toolbar appearing when images are hovered over. Not really necessary, and out of date.
<meta name="document-type" content="Public" >
Indicates that the page is meant for public viewing.
<meta name="document-rating" content="General" >
Kind of like a film rating. General means it's safe for kids etc.
<meta name="classification" content="Consumer">
Suggests a category for the content of your site.
To be honest, I've not seen many of these ever used. I don't know if they still have any SEO value.