Refs #3809 - Remove cops for empty lines

fixes #8281 - remove id-name parameterization from puppetca

Fixes #6710 - unicode characters in url parameters

Original methods to_param defined on resources called name.parameterize
to get rid of url-unsafe characters. This function unfortunately also
stripped off unicode characters.

Changes:
- parameterization extracted into a separate module Parameterizable...

Refs #3809 - Use parentheses in method definitions

fixes #6402 - use standard success/error handlers in UI controllers

fixes #2411 - move files in /models to /concerns, /services, /mailers, /observers