Summer cleanup on https://issues.dlang.org

[Andrei Alexandrescu via Digitalmars-d-announce]

I just made a pass through https://issues.dlang.org for a cleanup. It 
used to have many small projects that were of low traffic yet enjoyed 
the same visibility as the main ones. So I took the following actions:

* Consolidated all small tools (obj2asm, optlink, etc) under "tools".

* Consolidated all D2.x versions under D2.

* Consolidated D1 & D2 issues under D2.

* Retired D1. It's closed for new submissions.

* Kept the following projects: dlang.org, dmd, druntime, installer, 
phobos, tools, and visuald. The respective github page is linked in each 
project description.

The intent of these changes should simplify and defragment navigating 
the issues list and entering issues.


Enjoy!

Andrei