Core/Spells: Define and implement SPELL_ATTR7_NO_PUSHBACK_ON_DAMAGE
Fixed SendAddonMessage issue.

This fixes GM's not being able to send/receive addon messages through the whisper channel while accepting whispers are turned off.
Core/Spells: Replace MovePosition by MovePositionToFirstCollision in spell dest target handling.

- Solves issues such as being able to summon creatures inside terrain/gameobjects, being able to fall through terrain by using Shadowstep/Feral Charge (Cat), and much more
Core/Players: Fix haste rating formulas. They're supposed to be the addition, not the multiplication of all available bonuses

- This change matches client formulas
Core/Spells: Fix fishing on areas with liquid data but no valid height
Scripts/HoR: fixed conflict between multiple classes with same name

Closes #12051
DB/Gameobjects: Updated the VerifiedBuild of some gameobjects
Merge pull request #12050 from Trisjdc/u_liek_fish_questionmark

Core/Spells: Fix fishing on areas with liquid data but no valid height
DB/Creature: Fix Argent Tournament Vendors

By dr-j, closes #10351
Move file 2014_05_12_00_world_misc.sql
DB/Creature: Fix Antipersonnel Cannon (1) immune mask

Closes #11944, by gecko32
Core/Misc: Fix static analysis issues

Fix uninitialized values spotted by coverity.
Remove unused "dynamic analysis" code, use Valgrind or another dynamic analysis tool instead if needed.
Core/Arena: Fix exploit in arena team

Fix exploit that allowed anyone to add a target Player to any arena team.
DB/Conditions: Fix startup error added on 018da66
Scripts/SWP: Sathrovarr will no longer cause player teleports on grid load
Merge pull request #12058 from Trisjdc/sunwell

Scripts/SWP: Sathrovarr will no longer cause player teleports on grid load
Merge pull request #12021 from Trisjdc/spell_target_dest

Core/Spells: Replace MovePosition by MovePositionToFirstCollision in spell dest target handling.
Core/Misc: Fix crash in ticket creation

Fix a crash happening with malicious CMSG_GMTICKET_CREATE packets.
Core/SAI: Prevent nullifying damage, because of player damage requirements
Fix various warnings. The core, the scripts and the tools now compile without warnings with -Wall -Wextra -pedantic.

-Fix warnings from -Woverflow on implicit constant conversion.
-Fix warnings from -pedantic.
-Fix warnings from -pedantic.
-Fix warnings from -Wformat.

Two minor changes in addition :

-Replace a defined value equal to 2^31 - 1 by std::numeric_limits<int>::max().
-Remove useless null-check on pointer returned by new. New doesn't returns nullptr on failure, it throws std::bad_alloc.