libstxxl: build in release mode.

Fixes #30437.
libstxxl: update 1.4.0 bottle.

Closes #30458.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
This was troubling me for some time now...macvim insist in not linnking
with the python inside the path variable. This is a fix for this and
a remove from old code that didnt work. Try yourself. Works for
homewbrewed python and other pythons (such as anaconda). A must if you
want vim-python+macvim+anaconda.
Merge branch 'master' of https://github.com/ocehugo/homebrew