Date formatting on ISO Strings is lost

[nczeranka]

Current version of i18n mananger (1.2.8) is running in an error when trying to format dates provided as ISO string representation - e.g. '2019-08-20T04:00:00.000Z'. (Not an unusual requirement when dealing with JSON data.)

TypeError: dateObj.getTime is not a function
at Object.addMilliseconds (/home/node/sales-invoice/node_modules/@opuscapita/i18n/lib/external_modules/date-and-time.js:226:29)
at Object.addMinutes (/home/node/sales-invoice/node_modules/@opuscapita/i18n/lib/external_modules/date-and-time.js:215:17)
at Object.format (/home/node/sales-invoice/node_modules/@opuscapita/i18n/lib/external_modules/date-and-time.js:117:18)
at DateConverter.valueToString (/home/node/sales-invoice/node_modules/@opuscapita/i18n/lib/converters/DateConverter.js:72:36)
at I18nManager.formatDate (/home/node/sales-invoice/node_modules/@opuscapita/i18n/lib/utils/I18nManager.js:259:64)

Version 1.2.1 did support formatting on ISO strings.
As the result we currently use 1.2.1 of i18n manager because of the lost support.

Instead of getting stuck on version 1.2.1, could you include the lost ISO representation support again?