Revert "Whitespace bombing run"

This reverts commit 713942705075e374ba56fe842f6b4b3fee362b7a.

Conflicts:
	src/main/scala/verification/schedulers/PeekScheduler.scala
Assert no messages when quiescent

Change peek scheduler to assert that no messages are sent when the system is supposed to be
quiescent
Merge commit '0b9f19cf19473fa69e80aa586338d9409d869a40' into colin-rbcast

Conflicts:
	interposition/src/main/scala/verification/schedulers/PeekScheduler.scala