Enabled django.middleware.csrf.CsrfViewMiddleware

Enabled global csrf checking to have proper validation
Added csrf_token tag to template and forms

Added tokens to the end of form tags to make it easier to grep
them and it matches previous formatting.
Removed decorator

Decorator no longer needed as all necessary forms are protected
with CsrfViewMiddleware in middleware classes.
Merge pull request #247 from bugzPDX/bug_917

Add CSRF tokens to more templates; enable middleware

Closes: https://openhatch.org/bugs/issue917