Remove manually added many_to_many relationships. The schema generator is now creating them automatically.
Rename a variable to avoid confusion

Fixes warning: "my" variable $published masks earlier declaration in same scope at /mnt/hgfs/prog/recall/Recall/script/../lib/Recall/Controller/Blog.pm line 308.
Don't get the name from post data, we already have it from the URI

Fixes warning: "my" variable $name masks earlier declaration in same scope at /mnt/hgfs/prog/recall/Recall/script/../lib/Recall/Controller/Admin.pm line 222.
If a tag isn't found, then 404 instead of throwing an error