mongodb 2.7.5 (devel)

Closes #31687.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
juju 1.20.5.
juju: update 1.20.5 bottle.
jenkins 1.575

Closes #31689.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Add mmseg 3.2.14; This version is pacthed for compiling errors in MacOS. Mirror of source code can be found at https://github.com/RobinQu/mmseg;

libmmseg is a Word Identification System for Mandarin Chinese Text Based on Two Variants of the Maximum Matching Algorithm
point to original project; add test; remove m4 from deps
mmseg: add 3.2.15 bottle.