* Fix for HTTP-Request not sending body for GET
Background in SO question:
https://stackoverflow.com/q/60356824/504554
* Prevent crash when coreNodesDir points to empty dir
This should prevent a crash when you point to an empty core nodes
directory.
* Matching upstream master
The exec and events components are common components that
are used by both runtime and registry. It makes sense to
move them into the util package.
This also adds some docs to the registry module
