v2.1.0

Features and improvements

• Add Mini Tokyo 3D API. Only constructor options are available in v2.1
• Start to provide the npm package
• Developer guides in English and Japanese are now available
• Improve Traditional Chinese translation. Thanks @c933103
• Support the major train timetable update on June 6
• Improve tracking and scaling of trains/aircrafts
• Flash an object's outline when tracking
• Add Tama Monorail line and support for ODPT data source
• Add limited express train models for Seibu and Tobu
• Support S-TRAIN and TH Liner
• Remove the workaround for multi-language support for station labels