Fix broken rule/tag loading from the config file
Fix broken rule/tag loading from the config file

Fixes #81

This was introduced in 2cbdf1f136a6eafa3121ca5b1c2147d44bc147e0

markdownlint/markdownlint,mivok/markdownlint,DavidAnson/markdownlint-ruby,peter1000/markdownlint,Borgaard/markdownlint,exalted/markdownlint