Update version number
Merge remote-tracking branch 'rngtng/master'
Bump version to 0.4.1
Update version in Gemfile
Remove obsolete example from readme.
Adds initial i18n support.

This is a work in progress. It adds -i (or --i18n_path) option to adyen-skinbuilder command that can point to directory with I18n supported translation files.

Localized skins can be viewed by appending locale query parameter to request (?locale=fr).