DB/Conditions: Fix conditions for class trainer npcs, so gossip menus will show up correctly for every class
Merge pull request #11069 from Elron103/pullrequests2

DB/Conditions: Fix conditions for class trainer npcs, so gossip menus will show up correctly for every class
Core/Pet: Allow all pets to swim

closes: #9331
Merge pull request #11070 from gerripeach/pets

Core/Pet: Allow all pets to swim
Core/Group: Fix crash in "Group::GetMembersCount"

closes: #9350
Merge pull request #11071 from gerripeach/group_crash

Core/Group: Fix crash in "Group::GetMembersCount"
DB/Misc: Ormorok the Tree Shaper Spell Reflect

Closes #10789
Core/Spell: Earthbind totem should not have DR (Diminishing Returns)

closes: #7037
Merge pull request #11072 from gerripeach/diminishing_returns2

Core/Spell: Earthbind totem should not have DR (Diminishing Returns)
Core/Spells: Fixed diminishing returns on creatures with CREATURE_FLAG_EXTRA_ALL_DIMINISH

Closes #11073