Some small issues version 0.9.59

1. On the second page of a blog posts page (amp) the MainEntity in structured data is missing the page number – this will cause a failure because @id needs to be unique for structured data – placed on gitbub.

2. View non-amp version link on blog posts pages goes to static home page and not the normal blog posts page.

3. In header-bar.php the alt tag should be used – bloginfo should be applied if alt tag is empty.