Moved acceptance tests into tests/acceptance

tests/acceptance/fakes/dest/reject_acl.rb

@@ -0,0 +1,13 @@
+#!/usr/bin/env ruby
+
+# Accept a connection, then immediately close it.  This simulates an ACL rejection.
+
+require 'flexnbd/fake_dest'
+include FlexNBD
+
+server = FakeDest.new( *ARGV )
+server.accept.close
+
+server.close
+
+exit(0)