Migrate DirManip away from append_conf().
Migrate DirManip away from append_conf().

Change a handful of more thorny routines away from
ConfWriter_append_conf(), allowing us to curtail usage of various
"shorten" routines.

git-svn-id: 33c1020af00f61ce75d0fe36814d3322ab23371a@1350343 13f79535-47bb-0310-9956-ffa450edef68

apache/lucy-charmonizer,apache/lucy-charmonizer