Busboy is not a constructor

[winterZhao]

看到package.json里的"connect-busboy": "0.0.2"写死版本了。然后到connect-busboy看到mscdex/connect-busboy#21 里写的

v0.0.3 is released that fixes the semver range to match the pre-v1.0 busboy.
v1.0.0 is released to match the changes in busboy v1.0.

现在尝试按照，在pacakge-lock.json里的"connect-busboy": "0.0.2"，依赖安装到的busboy为*，实际安装的是1.4.0版本。所以再注册用户时会报错Busboy is not a constructor。感觉connect-busboy不太好改。是否您这边把connect-busboy升高会好点呢。

[tsflow]

升级到v1.0.0 就行了