updating npm shrinkwrap files
added file for fiber_helper style stubs on the client
Test for observe ordering in minimongo on server.

Currently failing.  Test first wheeeee!
Minimongo now uses a queue to manage observes

What this means for the user is that now, both on the server and the client, if
you look at a minimongo-backed collection from an observe/observeChanges
callback, you'll see a consistent view of it -- you'll never see it in the
middle of an update, for instance.

Furthermore, server!minimongo no longer has stubs, just future waits or
callbacks, your choice.
REBASE THIS AWAY trying to debug why inserted elt not seen in s2s minimongo
Fix up the test; error was between keyboard and chair