fix the web_root setting functionality broken in d73cc1c.
cherry-pick a Sickbeard pull request add an option to NOT rename .nfo to .nfo-orig
from oldskool:nfo_orig
credit to oldskool

Fixing issue 2404: Option to NOT rename .nfo to .nfo-orig

Conflicts:
	data/interfaces/default/config_postProcessing.tmpl
	sickbeard/__init__.py
	sickbeard/postProcessor.py
	sickbeard/webserve.py
Merge branch 'nfo_rename_option' into prod
Merge branch 'dev' into prod

Conflicts:
	sickbeard/webserve.py
	sickbeard/webserveInit.py