Core: Remove lots warnings:

- All "'xxx' will be initialized after 'yyy' when initialized here"
- Some "unused variable"
- Some "enumeration value 'xxx' not handled in switch"

--HG--
branch : trunk

src/server/shared/Database/MySQLConnection.cpp

@@ -31,9 +31,9 @@
 #include "Timer.h"
 
 MySQLConnection::MySQLConnection() :
-m_Mysql(NULL),
+m_queue(NULL),
 m_worker(NULL),
-m_queue(NULL)
+m_Mysql(NULL)
 {
 }