gdb-18 branch FROZEN

Hello everyone,

Please avoid pushing any commit to the gdb-18-branch branch during
the next few hours. I am working on creating the next pre-release
off this branch.

Also, if at all possible, it saves me a bit of time if you can avoid
pushing changes to the master branch, as it would force me
to handle rebasing and possibly conflict resolution.

I will send a followup message when the branch is open again.

Thank you,
-- 
Andrew Burgess