Issue 4357: Next rebase of upload. Should actually be quite the same

Issue 4357: Next rebase of upload.  Should actually be quite the same
as the version before last rebase since issue 4373 now is in the race
as a substitute for the ill-fated and reverted issue 4360 and can get
reviewed in parallel with this one as there are no merge/rebase
conflicts between the two.


Remove Scheme listeners as they are just callbacks now.


Reimplement Listener around generic SCM callback and instance


Run preparatory script replacing listener macros

This script is

for i in $(git grep -l 'IMPLEMENT_LISTENER (')
do
    sed -i '/IMPLEMENT_LISTENER ([^)]*$/{N;s/\n\s*/ /}' $i
    sedscript=$(git grep -h 'IMPLEMENT_LISTENER (' $i|
		       sed 's|^.*IMPLEMENT_LISTENER (\([^,]*\), \([^)]*\)).*$|s/GET_LISTENER (\\([_a-z]\\+->\\)\\?\2)/\\1GET_LISTENER (\1, \2)/|')
    sed -i "$sedscript" $i
done
sed -i '/IMPLEMENT_LISTENER (/d' $(git grep -l 'IMPLEMENT_LISTENER (')
sed -i 's/DECLARE_LISTENER (\([^)]*\));\?/void \1 (SCM);/' $(git grep -l 'DECLARE_LISTENER (')

Make dispatchers callable for dispatching


Move self_scm_ into non-templated Smob_core base class.

[dak, 2015-05-07 11:56:19]

Fold in simple version of issue 4576

[dak, 2015-05-07 14:01:46]

Replace all the translator_listener_record stuff with Scheme