rototiller: bump submodule for instantiated setups

Prior to this in some modules you could manipulate their settings
while watching their output, and the changes would be realized
*immediately*.

Rototiller has firmed up the application of settings so they're
no longer module-global and instead apply to an allocated setup
instance that is then supplied to create_context().

As a result, in glimmer, one must always now click "Go!" to see
the effects of new settings.

1 files changed, 0 insertions, 0 deletions

diff --git a/rototiller b/rototiller
-Subproject e8e79b7a2b88262b84bf6006bc7cd5764962fdc
+Subproject 4351afc62b3dd1c7fb7f0bc563dae22ee0ec73d