If you never use the Mercurial repository or deal with issues, you can
stop reading now.
Google Code is shutting down, the Vim project is being moved to Github.
While this is happening, no changes are to be made.
Especially, don't add new issues or edit existing issues.
These changes will be lost.
Unfortunately there is no way to set this to read-only mode without shutting
the whole site down already.
I'll make another announcement when it's done. Then there will also be
a page with instructions on how to adjust your local repository to pull
from the new one.