removes harmony flags

Merge pull request #2 from caub/img

Update base image to node:slim

fix image name

Merge pull request #1 from caub/fix-timeout-merge

Merge branch 'fix-timeout'

fix and test timeouts

allow child_process, async_hooks, ..

fix some things

nicer tests

fix global core modules, no need for run.sh

fix modules array

set core modules in global

pass data in stdin rather

small cleanup