gavinlynch

/**
 * Vue Plugin instance for Validation.
 * Use as:
 *  import Validation from './plugins/validation.js';
 *  Vue.use(Validation, options);
 *  Validation.add({
 *    customValidation: {
 *      message: 'Message when invalid.',
 *      comparison: (newer, older) => older === newer,
 *      validate: function (value) {