* Split core lib into multiple files
* Refactor data encoding methods
* Refactor data masking process
* Improve qr code generation process
* Increase minimum required node version to 0.10
* Add linter
* Add tests and tests coverage
* Update travis config to fix compilation issues
* Add examples folder
* Add missing license tag in package.json
* Update build script and add sourcemap support
* Publish only strictly needed files on npm
* Update readme
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