Promises/A+ spec implementations?

[Alexander J. Vincent via Digitalmars-d-learn]

Hi, folks.  Over ten years ago I had some interest in the D 
language.  I'm starting to think about it again...

I've been using Mozilla's Promises implementations for quite a 
while, now, and they're surprisingly nice to work with.  They are 
the next generation beyond the callback function patterns I 
learned in JavaScript.  I've been thinking that writing a 
Promises/A+ library for D would be a good task for a relatively 
inexperienced D programmer.  I didn't see any Promises/A+ 
implementations in the standard library or on code.dlang.org.

Now, whether I write that library or someone else beats me to it, 
I don't really care right now.  I'm interested in doing it, but 
my time is extremely limited.  I'm mainly posting this as a 
request to get a Promises/A+ library started, and for me to 
observe the process of crafting a library.  If someone wants to 
be a mentor for me on this, answering direct questions, that'd be 
great.

The spec for Promises/A+ is at https://promisesaplus.com/ . 
Mozilla's Bobby Holley recently wrote a good blog post about a 
"MozPromise" implementation which includes supporting 
multithreading (a concept I don't fully understand how to write 
for, yet) and cancelling a Promise (which isn't in the spec, but 
makes sense for Mozilla's purposes).  That blog post is at 
http://bholley.net/blog/2015/mozpromise.html .

Finally, I had an old login to this forum (kb7iuj), which I've 
long forgotten the password for.  I did see that there's no 
password recovery support, so could someone just terminate that 
login for good?