copyFrom warning + callback example

copyfrom initiated
https://groups.google.com/d/msg/f3-framework/jcep_AVmthQ/-vmwBunHjoQJ

but both jig.mapper & mongo-mapper have a copyfrom method.

??? Do U think it's better to put the blurb about it in
http://fatfreeframework.com/databases#beyond-crud  ???   and refer to it
in the 3 mappers
Final fixes!!!!!!!!!!!!!!!!!!!!

and final 'i like to add links, commas, parenthesis, and... verbosity ;)
well, Christian, THANKS for your patience and cooperation. #Done
update copyfrom examples
update examples
fix typos, revert to some more suitable words
fix typos
this is getting really annoying
there's nothing wrong with it

and actually sounds better