GemServerLauncher needs to isolate processes and semaphores ... not commitable

[dalehenrich]

Need to use TransientStackVlue to isolate....discovered while working through interactive debugging of Seaside using gem server.

[dalehenrich]

The use case I was looking at was to run the GemServerLauncher to force the main process to be portable, but there are other issues besides the TransientStackValue that get in the way, so this bug will be deferred beyond 1.0.3 (and maybe forever)