Disquss comments broken when running in development mode.

[tuupola]

Sorry I accidentally sent a pull request on this. Anyways there is a typo which prevents Discuss system to work when running Nesta in development mode in localhost. Following commit fixes the problem:

http://github.com/tuupola/nesta/commit/f6ad7b75d08e30aa81fbee469f70ba8ada17ea76

[gma]

Thanks for the patch. Applied!