Start of std2

[Bill Baxter]

Walter Bright wrote:
> Bill Baxter wrote:
>> A modest start, but here's a quickie port of D2.x std.conv,std.traits, 
>> and std.variant to D1.x.
> 
> How about std.getopt?

Easier than expected!  A two-line change given std2.conv and std2.traits.

Full list is now:

contracts.d
conv.d
getopt.d
string.d
traits.d
variant.d

http://www.billbaxter.com/tmp/std2.zip

--bb