Scripts/Icecrown Citadel: Fixed possible crash in blood nova target selection
Core/Vehicles: Fixed power issues

* Regenerate powers only if vehicle has UNIT_FLAG2_REGENERATE_POWER
* Removed old pyrite power hack
* Apply creature_template.ManaMod to all power types

Closes #12141
SQL: Renamed files to match the naming rules
DB/Instance: Fixed mutated abomination regenerating power clientside
Replaced calls to ceilf (msvc extension) with ceil - fixes build
Scripts/Misc: random fixes