Merge pull request #75 from brycedrennan/patch-1

Update docs to match code.
Merge branch 'master' of https://github.com/coffin/coffin
Raise django TemplateDoesNotExist instead of jinja TemplateNotFound
"Merge pull request #78 from Yipit/master\n\nRaise django TemplateDoesNotExist instead of jinja TemplateNotFound"