Release 0.15.0

What's been added?

• A file format for Import & Export has been created
• Import & Export logic has been added.
  • Import recursively reads all files within a directory, so you may organise however you wish.
  • Export exports each locale to it's own file, with name of locale.
  • Currently only JSON is programmed in, but anyone who want to implement any other format is welcome and it's all setup to do so going forward.

More?

• A full example with files and without files has been added showing how this would be integrated into a web application. NOTE: this is only how I would do it...but you could do it in any other way you wish.
• File Format examples have also been added

This is for #6 and #7