- Primarily working around an issue that occurs when threads
concurrently create pipes and fork a child process. See comment in
code...
- Other minor cleanup of the code: making sure the child process calls
_exit() versus exit(), limits itself to few select system calls before
the exec(), and closes more unused file descriptors.
* send end_of_data event for all kind of streams
* send process_finished event containing exit code of child process for executed programs
* move raw-tests to separate directory
* expose name of input stream to readers
* better handling of some error cases in raw reader
* new force_kill option for raw reader which SIGKILLs progesses on exit
The ordering of events how they arrive in the main loop is a bit peculiar at the moment.
The process_finished event arrives in scriptland before all of the other events, even though
it should be sent last. I have not yet fully figured that out.
