Updates for complex-form-examples for Rails 3

[hartct]

Hi there. I used your complex-form-examples fork heavily when I was learning multi-model forms in Rails 2.3. I recently upgraded to Rails 3 and found that the deprecated block style helper syntax that was so common in Rails 2.3 affected the output of your jstemplates block.

Thanks for having such a helpful example on forms! I believe my fork fixes the issue with Rails 3 if you're interesting in pulling it.

Chris