Implemented #467 Journal logs comments on changesets - added created/updated user action to journal - added created/updated users group action journal - added ip adresses to most of action_log calls to track IP changes - rewrote action_parser to simpler and more efficient solution

%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}