Version 3.3.1
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Models for Slovene (sl), Croatian (hr) and Serbian (sr) are improved.

Version 3.2.2
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TravisCI is now used for building wheels for all platforms (Linux, Mac, Windows) and the code was patched for manylinux2010 requirements.

Version 3.2.1
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This is the first public release which follows two internal unreleased versions.
