modified type from u16 to u32

[ikegam]

I faced a type issue. Based on my JSON from google takeout, accuracy goes over u16 such as "74130". And then, I got following error message from yore.

thread 'main' panicked at 'called Result::unwrap() on an Err value: HistoryError(DeserializeError(ErrorImpl { code: Message("invalid value: integer 74130, expected u16"), line: 277226, column: 22 }))', libcore/result.rs:945:5

So I simply increases the size.

[coveralls]

Coverage decreased (-9.07%) to 63.101% when pulling 49de397 on ikegam:type-u16 into 19bed3e on WrinklyNinja:master.

[Ortham]

Thanks, I didn't know anyone was interested in this! 😮