Update the duct_flow test case with code implementing the analytical solution.
Fix typos in the duct flow example.
Add the channel cube example.
Add support for the AB access pattern in the recirculation buffer
kernels.
Support the AB access pattern and use the NTCopy nodes for outflow.
Geometry hacks.
Generalize the code to support larger subdomains.
Start work on collecting Reynolds stresses.
Make channel_cube compatible with SIGHUP.
Use orientation instead of link tagging when link tagging is turned off by a configuration option.