pgsql: Add Wiki URLs for: < * Allow encoding on a per-column basis

Log Message:
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Add Wiki URLs for:

< * Allow encoding on a per-column basis optionally using the ICU library

http://wiki.postgresql.org/wiki/Todo:Collate
http://wiki.postgresql.org/wiki/Todo:ICU

Modified Files:
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pgsql/doc:
TODO (r1.2408 -> r1.2409)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/TODO?r1=1.2408&amp;r2=1.2409)
pgsql/doc/src/FAQ:
TODO.html (r1.914 -> r1.915)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html?r1=1.914&amp;r2=1.915)