v1.6.0

A Happy New Year!! 🎉
Please also Pixela, this year!

• Support new property optionalData for Pixel .
  • You can record additional information as JSON string other than quantity in Pixel which is data for each date.
    • ex. "optionalData":"[\"Running at morning\"]" , "optionalData":"{\"morning\":\"3km\",\"evening\":\"5km\"}"
  • optionalData content can only be get with GET /v1/users/<username>/graphs/<graphID>/<yyyyMMdd> API response now.
    • In the future, we plan to list up or search for optionalData.
• [Breaking Change] Response format of GET /v1/users/<username>/graphs/<graphID>/<yyyyMMdd> is changed.
  • before: {"quantity":5}
  • after: {"quantity":"5"}
  • Quantity type was string originally. There was a mistake in the format of the response so far. So sorry...