Ensure loadLanguages method calls down to i18next.loadLanguages instead of i18next.loadNamespaces

[fatboystring]

Note that I've incremented the patch number in package.json and have added the change to CHANGELOG.md assuming that you're happy with the new version number.

If you want me to add anything else please let me know. I'd very much appreciate it if you would be able to push this version to NPM once accepted.

Thanks

[coveralls]

Coverage remained the same at 85.915% when pulling 2b77a5a on fatboystring:loadlanguages-fix into eb0073e on Romanchuk:master.