DB/Waypoints: Add waypoints to Heartrazor
closes #7444
DB/Quests: Fix Frostmourne Cavern, closes #9856 closes #4293

Thanks @Malcrom for the initial script and @Kirkhammett for some additional work
DB/waypoints: Fix a path and remove a double spawn.
DB/SAI: fix typo in previous commit
DB/Quests: Fix some remaining issues from https://github.com/TrinityCore/TrinityCore/commit/aaa1d9b749988fb1ad3139041e7199b1381b54ba

For example the missing floating visual and prevent the script from being started more than once.
Remove BOM from 2013_05_21_00_world_trinity_strings.sql
Merge pull request #9884 from LeGuybrush/Remove-BOM

Remove BOM from 2013_05_21_00_world_trinity_strings.sql
Scripts/Halls of Reflection: Fixed a possible crash
Core/Players: Send only values update when turning gm mode on or accepting quests instead of recreating the object clientside
Update Chat.cpp

this is better or?
Merge pull request #9890 from b4nan1/patch-2

Update Chat.cpp
DB/Quests: Fix To Catch a Thistlehead, closes #9876 closes #6319

Thanks @Kirkhammett for all the work
Core/Collision: Fix memory leak
Core/Misc: Fix invalid pointer use after being deleted
Core/Misc: Another batch of fixes for issues found by static analysis