These were added in espeak 1.47.11a, but Slovenian uses Latin
like Polish and Czech.

The earliest form of Slovene (the Freising Manuscripts, between
972-1039) are written in Latin.

Some Cyrillic and Cyrillic-like letters were used in addition to
Latin in the Dajnko and Metelko alphabets between 1824 and 1838,
but these alphabets did not catch on.

The modern form is based on the Serbo-Croatian Gaj's Latin alphabet.
This is the alphabet represented in the espeak `replace_cyrillic_latin`
table. Slovenian does not use the Cyrillic variant of this alphabet.

This reverts commit 223ff9c8ad.

The phoneme to audio tests are covered in the phoneme-audio tests.
Therefore, the language tests just need to test the text to
phoneme logic.

Outside of Linux platforms, sha1 hashing from the command-line is accomplished
by commands other than sha1sum. OSX uses shasum and FreeBSD uses sha1, so I've
added in detection for the appropriate command before falling back and failing
the test.