Move 2.0.11 upgrade script into version_upgrade dir

Signed-off-by: Dan Scott <dan@coffeecode.net>

diff --git a/Open-ILS/src/sql/Pg/2.0.10-2.0.11-upgrade-db.sql b/Open-ILS/src/sql/Pg/version-upgrade/2.0.10-2.0.11-upgrade-db.sql
similarity index 100%
rename from Open-ILS/src/sql/Pg/2.0.10-2.0.11-upgrade-db.sql
rename to Open-ILS/src/sql/Pg/version-upgrade/2.0.10-2.0.11-upgrade-db.sql