Standard I18n formats parsing.

[Exoth]

I think that for every locale this code should return true:

>> I18n.l(Date.new(2013,1,2), format: :long).to_date == Date.new(2013,1,2)

but it just gives an error even for :en locale ("January 02, 2013"):

NoMethodError: undefined method `map' for nil:NilClass

whilst even the standard parser successfully parses the format for :en locale.

So the current standard I18n date formats should be automatically added to the timeliness formats. How do you think?