Init self from a ISODate formatted string.

Property definitions

core $ ISODate :: from_string
	# Init `self` from a ISODate formatted string.
	init from_string(str: String) do
		year = str.substring(0, 4).to_i
		month = str.substring(5, 2).to_i
		day = str.substring(8, 2).to_i
		hours = str.substring(11, 2).to_i
		minutes = str.substring(14, 2).to_i
		seconds = str.substring(17, 2).to_i
		timezone = str.substring(19, str.length)
	end
lib/core/time.nit:242,2--251,4