v0.3.3

API

• Added new functions to validate jis code. (code_validate(), code_reform() and cityname_reform())
• English column names have been added to the jpnprefs data set. #21, by Ryo Nakagawara (@Ryo-N7)
• Added new function to find city code (find_jis_code()). This function do not consider historical changes. #23

Fixed Issues

• Mismatching variable names in jpn_pref() #17
• Always returns the nearest city or prefecture #18
• Failed in code_validate() #19
• Unify behavior due to differences in parameters in jpn_pref(). #22