Not compatible with typescript 3

[aeisenberg]

It is not possible to compile a program using skype-http and typescript 3. The reason is that you are using an old version of kryo that includes *.ts files in the package. And these *.ts files are now no longer compilable with standard tsconfig compiler options. I am attaching a package.json and index.js that illustrates the problem.

To reproduce:

1. download both files into a new directory
2. npm i
3. ./node_modules/.bin/tsc

You will get a bunch of compile errors like the ones in compilation-results.txt in the sample project.

To fix this, I believe you will have to upgrade to the latest kryo version, but looks like there are API changes to handle as well.

Sample project.zip