Simplified the C database APIs from varargs to single word-list.
Updated caller, removed need for most eval/linsert combos.
Critcl application. Split overall processing, and input processing into the main three modes.
Enabled simplification of each mode to its needs.
I.e. ignore results where not needed.
Expose result processing where actually used, for further rewrites into direct database access instead of having to push a dict around.

Added docs about the cresults data.