Fix raid groups load from DB and save to DB.

Fixes issue #299.

- In table GROUPS, since rev 7841, isRaid is used to store the groupType. The DB was not updated. this is now fixed.
- Fix isRaid set to 1 when group converted to raid (shall be the groupType).
- Fix isRaidGroup check as groupType is now a set of flags.
- Fix dungeon/raid check when difficulty change.

--HG--
branch : trunk

1 files changed, 2 insertions, 0 deletions

diff --git a/sql/updates/8116_characters_groups.sql b/sql/updates/8116_characters_groups.sql
new file mode 100644
index 00000000000..a75bb274ffb
--- /dev/null
+++ b/sql/updates/8116_characters_groups.sql
@@ -0,0 +1,2 @@
+ALTER TABLE `groups` CHANGE `isRaid` `groupType` MEDIUMINT(8) UNSIGNED NOT NULL;
+UPDATE `groups` SET `groupType`=2 where `groupType`=1;