Scripts/Pit of Saron: Very minor spelling error correction.
Merge pull request #9424 from gigatotem/master

Minor spelling correction in Scourgelord Tyrannus.
DB/Spells: Corrected playercreateinfo_spell records *for good*.

Also corrected load count and temporarily removed an error log. It needs better troubleshooting to avoid error'ing false positives.
Remove documentation for script/custom texts

The related code and tables do not exist anymore.
Fix some engrish
Core/Unit: Fall after exiting vehicle if the unit is in air and can not fly
Script/Quest: Into the wild green Yonder

Still todo:
* Fix spell focus requirement for the drop spell casted by the vehicle

Closes: #8752