mercurial: add mirror

Closes #22901.
nanomsg: version 0.2 supports both doc and nanocat

Previously they were supported only by HEAD build.

Closes #22918.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
leveldb 1.14.0

Closes #22920.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
vim: fix lua option

Closes #21963.
vowpal-wabbit 7.3

Also fix HEAD install

Closes #22923.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
rt-audio 4.0.12

Closes #22770.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
proftpd

Closes #22281.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
mariadb: remove broken client-only option

This option is broken upstream.

https://mariadb.atlassian.net/browse/MDEV-439