misinterpretation and crash when using normal date format

[asenchristov]

When using the normal date format (i.e. dd/mm/yyyy), it assumes the strange US format where the month is the first number.

[salamanders]

True, it isn't a pretty way to parse dates that respects local timezones: https://github.com/google/ezgantt/blob/master/website/js/ezgantt.js#L146

Open to suggestions!

[salamanders]

I was strongly considering moving to moment.js and turning on strict mode parsing.