Typescript

• Source code moved to Typescript
• Typescript definition files are included in the distributable for consuming code using Typescript
• If a date has an incorrect month entered via keyboard (e.g. 13) or a date which does not exist on that month (e.g. 31st Feb) the customValidation message places asterisk around the incorrect date component - e.g. **DD**/mm/yyyy or dd/**MM**/yyyy
• Build/transpiling process now uses minified ECMAScript from the distributable when bundling and minifying the examples (as opposed to referencing the source code)
• The polyfill-if-required function resolves with an array of polyfilled input instances if the polyfill is required (null otherwise)