Allow use effectIndex in spell_target_position.
Merge pull request #9790 from vlad852/master

spell_target_position - allow use effectIndex
Core: Declare some functions const and remove use of "using" directive in a couple of files
Core/Logging: Performance-related tweaks to logging system
    All sLog->out* functions (except outCommand atm) are replaced with TC_LOG_* macros.
    Memleak fix
Core/Spells: Manually reverted 8dea73fc83ed00764e03c6ee3bb7c1ffa28527eb.

Will have a closer and better look later.
Core: Fixed windows compile
Core/Debugging: Marked assert functions as non returning
Merge remote-tracking branch 'tc/master' into wotlk