fix utf-8 to utf-8-sig

Author: wannaphong

pythainlp/postaggers/text.py

@@ -10,7 +10,7 @@
 template_file = os.path.join(templates_dir, 'thaipos.json')
 #default_tagger = nltk.data.load(nltk.tag._POS_TAGGER)
 def data():
-	with codecs.open(template_file,'r',encoding='utf-8') as handle:
+	with codecs.open(template_file,'r',encoding='utf-8-sig') as handle:
 		model = json.load(handle)
 	return model
 data1 =data()