Pythainlp

- Add Thai Discourse Treebank postag 910
- Add Thai Universal Dependency Treebank postag 916
- Add Thai G2P v2 Grapheme-to-Phoneme model 923
- Add support for list of strings as input to sent_tokenize() 927
- Add pythainlp.tools.safe_print to handle UnicodeEncodeError on console 969
- Fix collate() to consider tonemark in ordering 926

- Add clause_tokenize warnings 1026
- Fix maiyamok() that expanding the wrong word 962

- Fix: pythainlp.util.maiyamok does not duplicate words when more than one
Maiyamok is used 917

- Fix: empty string ('') added when using word_tokenize with
join_broken_num=True 912

- Fix: crfcut: Ensure splitting of sentences using terminal punctuation 905

- Fix: delay calling syllable_tokenize to avoid pycrfsuite ImportError 901