Merge pull request PyThaiNLP#249 from PyThaiNLP/fix_bug_2_0_7

PyThaiNLP 2.0.7

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Merge pull request PyThaiNLP#236 from PyThaiNLP/fix_bug_2.0_thainer

PyThaiNLP 2.0.6

Merge pull request PyThaiNLP#219 from bact/dev

clean word lists

Merge pull request PyThaiNLP#204 from bact/dev

update readme

Merge pull request PyThaiNLP#195 from bact/dev

update README

PyThaiNLP 2.0.2

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