Do not include extra in command list.
0.8.156
Update define dependency.
0.8.157
Invoke command before function.

Such that a command configuration may have a *before* field that is a
function, if so it is invoked with (info, req, next) before command
execution.
0.8.158
Fix scope issue with before().
0.8.159
Allow callback to parse().
0.8.160
Respect exit configuration in manual.
0.8.161
Update stdin handling in manual.
0.8.162
Call next in manual open().

When not exiting the program.
0.8.163
Stash rc instances, do not reload.
0.8.164