URL consistency for D 2.0 website.

[Dejan Lekic]

Khm... I do not know about this...

The system is pretty much straightforward from my perspective - it uses 
what is common in all version control systems, where the most recent 
version (the one in-development) is in he trunk (/), while other 
versions are in tags/branches (/1.0)

Secondly, there is no stable D 2.0 yet, so it simply does not belong to 
"/2.0".