Issue ID: 18550
Summary: Offline option for dlang.org makefile
The current dlang.org makefile has all sorts of bells and whistles that take up
tons of time and requires network access, like downloading tarballs, cloning
git repos, *compiling* old compiler releases, and so forth.
Can we pretty please have an `offline` target that builds just the HTML and
*nothing* else? All I want to do is to test local doc changes (spec / Phobos);
I should not have to download gobs of stuff that's only relevant for the actual
dlang.org site, not for local testing of doc changes.