[mr125] Implement Guild Reputation
- Recalculate guild achievement on player login
- Implement battleground and instance guid xp and rep rewards
- Reimplement aura 281 as SPELL_AURA_MOD_GUILD_REPUTATION_GAIN

Signed-off-by: Yaki Khadafi <elsoldollo@gmail.com>
[mt126] Improvements in ObjectGuid
[mt127] Remove duplicated config.
[mt128] Update Battlefield opcodes to Cataclysm.
[mt129] Implement achievement points and professions for guild roster

Signed-off-by: Yaki Khadafi <elsoldollo@gmail.com>