Time to split up std.datetime into a package?

[Andrej Mitrovic]

Now that DIP37[1] is implemented (unless there are any bugs left with
the implementation), is it time we split up std.datetime into its own
package?

As a first step I recommend we separate out unittests into a test module:

std\datetime\core.d -- the actual implementation, name it whatever you want
std\datetime\package.d  -- package module
std\datetime\test.d  -- unittests

That should cut down on line numbers significantly.

[1] : http://wiki.dlang.org/DIP37