arangodb 2.3.1

Closes #34570.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
arangodb: update 2.3.1 bottle.
Add `brew any-tap` to the list of user commands

Closes #34571.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
gcc: sandbox within series release number only

Fixes #33948.
Revision formulae that use gfortran for GCC bump
Revision formulae that are built against Homebrew libstdc++
gcc: update 4.9.2_1 bottle.