throw execeptions that can be catched by user program

[lamuertepeluda]

Hi,

I try to address the problem that I mentioned here, in the first part of the comment.

Now if some error occurs when generating the api, they are not swallowed by codegen but instead they are thrown (after cleaning cache and other stuff) so that a user program can exit with error status.

[Manweill]

@lamuertepeluda add package-lock.json on .gitignore

[lamuertepeluda]

done

[Manweill]

emmm, remove it? just use yarn

[lamuertepeluda]

ok sorry I didn't get you were using yarn... reverting to yarn soon

[lamuertepeluda]

done now