* Modernized code all across the board
* Wailing Winds are now much closer to retail behavior
* Minions of Siamat are no longer chasing players and properly transform into clouds when possible instead of abruptly interrupting all actions
* Fixed an edge in which Siamat absorbed clouds but did not get his Gathered Storms effect
* Dropped all hacks
* modernized code style
* corrected behaivior of Blaze of the Heaven
* improved Plague of Age's spread reliability so it wont target already infected players
* Core/Unit: Allow to define Units which can enter water but cannot swim
Allow to define Units which can enter water but cannot swim, i.e. crabs walking at the bottom of a sea.
* Add UNIT_FLAG_SWIMMING to creatures when entering combat
* Fix charmed creatures not entering water
* Always allow Creatures controlled by players to enter water
* Add swimming flag when possessing a unit and remove it properly at the end, even if the creature engaged combat before and after.
When adding/removing UNIT_FLAG_SWIMMING manually calling Creature::RefreshSwimmingFlag(true) might be required.
* initialize Assembly of Iron's boss state on instance creation
* corrected the spell id usage for Steelbreaker's Static Disruption
* moved the Lightning Elemental Passive aura to the AI script instead of setting it in template addon
* Static Disruption will no longer target non-player targets to reflect its spell attributes
* apply the Shield of Runes buff only when the aura has been removed by breaking the absorb aura instead of when it has expired
* apply script naming consistency to Molgeim's Shield of Runes script name
* removed wrong instance bind extra flags from Assembly of Iron bosses
* corrected credit type for Assembly of Iron's instance encounter entry
* registered a missing spell script function
* modernized all remaining scripts
* no longer save already triggered area triggers in instance save data and block their execution only when the corresponding boss has been defeated already
* optimized area trigger scripts for boss intros by using a single shared script with different ctor arguments
* handle Cho'Gall's intro and outro texts for Halfus Wyrmbreaker
