recover from a decoding exception
Merge pull request #4 from mykmelez/charset-exception

recover from a decoding exception
Use posix_spawn instead of fork/exec to prevent crashes on MacOS Maverick.
update deprecated requires
Merge pull request #7 from ochameau/crash

Use posix_spawn instead of fork/exec to prevent crashes on MacOS Maverick
Merge pull request #8 from nickdesaulniers/deprecated

update deprecated requires
Set workerExitCode only when using initialized pipes, return  if it exists
Merge pull request #9 from jsantell/master

Set workerExitCode only when using initialized pipes, return if it exists r=@ochameau
Update README to current examples (remove pipes, onFinished->done, stdin use arg for writing)