Upgrades dev deps
Adds getCountryNames.

Idea proposed by @cyberdesigner via Pull Request #4.
As it didn't merge and changes more than just adding the method (indentation), I coded it here.
Merge pull request #5 from BluePyth/get-country-names

Adds getCountryNames.
Fixes main file name
Bump version to 1.0.3
Merge branch 'release-1.0.3'