D library projects : adopting Boost license

[Walter Bright]

Yigal Chripun wrote:
> [...]

On dsource you wrote: "The current situation requires to get an explicit 
permission to change the license from each contributor for his code and 
if someone cannot be contacted for any reason, his contribution cannot 
be re-licensed."

That's a big problem. The only solution I can see is to relicense with 
the Boost license whatever you can of Tango. We faced the same issue 
with Phobos, and we're just going to dump what cannot be relicensed.