When not parsing strictly, allow a space before the time-zone specification, as expected by NSDate's +dateWithString: and -initWithString: methods and emitted by its -description method.
When not parsing strictly, allow a space before the time-zone specification, as expected by NSDate's +dateWithString: and -initWithString: methods and emitted by its -description method.

danielctull-forks/ISO8601DateFormatter,danielctull-forks/ISO8601DateFormatter