Add support for #ignore<tab>regexp syntax to remove otherwise included and undesired files from the commands set.
Add support for #ignore<tab>regexp syntax to remove otherwise included and
undesired files from the commands set.

Explicitly included scripts will not be removed based on #ignore.

kbase/invocation,kbase/invocation,kbase/invocation,kbase/invocation,kbase/invocation,kbase/invocation