Removed redundant cast to c_str() in ConfigMgr::Reload function.

cppcheck performance warning:
[src/server/shared/Configuration/Config.cpp:62]: (performance) Passing the
result of c_str() to a function that takes std::string as argument no. 1 is
slow and redundant.
Merge pull request #13060 from LogvinovLeon/master

Removed redundant cast to c_str() in ConfigMgr::Reload function.
Core: Remove whitespace (again, again, ...)
Markdown: Revert f2655b2d2d969e47630b7ed07c4517a1b3004c97
SQL: Renamed file to follow standards
Core/Misc: Named an unknown creature type flag
Core/Scripts: made BossAI::CheckInRoom virtual
Merge pull request #5 from TrinityCore/master

Merge from TrinityCore