You can still redirect it using the .htaccess file, so that anybody requesting one of the old development pages is automatically sent to the same page on the new site. Something like
Redirect 301 /page.html http://www.domain.com/page.html
for each page.
I don't get it, t the directory for dev is gone, 100%, so where do I put it? Should I recreate a folder in my dev site and put the 301 ht access file. I hate ht access files btw!
This goes for the canonical stuff too. Which I also don't get (even after reading three web pages.)
I think it works like this. Page with duplicate content gets the tag to say - rank this page in the tag higer, it had more important stuff. I can;t see how I would apply that here?