As this is the behaviour when building eSpeak

we should do that on every release.

Issue #1185

It seems that reprotest is breaking the gradle build

Enhance detection of gradle

When there are language switches, when we rewind to the start of the
phoneme list we have to reset the phoneme table back.

This avoids some branching that depends on undefined values, caught by
valgrind in the case e.g. of an emoji substitution that contains a
language switch.

Ref #874

IsLetterGroup looks for heading \0, so the padding also needs to include
an \0.

So valgrind can potentially catch e.g. missing \0.

These don't actually need to survive function exit.

So we know they are just tables, get protected from overflows, and get shared between processes

This would have caught #1200

Fixes #1200

Revert "code cleanup: don't add a \0 to voices_language in LoadVoice()"

This reverts commit e91d0a5861.

update fa

Update fa_emoji