rototiller: bump submodule for rototiller_quiesce()

Since glimmer tears down and brings back up the world at will,
it needs a way to synchronize with idling the threaded renderer.

This may go away if librototiller gets refactored a bit to where
the main rendering loop moves into librototiller, but as long as
that's driven externally there needs to be a way to coordinate
at this level.

1 files changed, 0 insertions, 0 deletions

diff --git a/rototiller b/rototiller
-Subproject 55db80c6970b8643b4777c3b5586531e2d2e746
+Subproject e6bea65b6e53e7e283d30e1437da827c6325c58