Applied PEP8 and added docstring
Removed blank line (PEP8)
PEP8, updated Countries, and updated Cities
Added coding hint
PEP8 compliance and sorted all names
Added coding=utf-8 (PEP 0263)
Merge pull request #128 from mdxs/pep8_nl_NL

Made nl_NL providers PEP8 compliant