added initial rc-extension module - possible to store additional mappings for stats - possible to overwrite and add to whoosh index extensions issue #322 - post create repo hook callback - post push/pull hooks callback

%if h.is_hg(c.scm_type):
# ${c.scm_type.upper()} changeset patch
# User ${c.changeset.author|n}
# Date ${c.changeset.date}
# Node ID ${c.changeset.raw_id}
${c.parent_tmpl}
${c.changeset.message}
%endif
${c.diffs|n}