Core/Updates: Add an automatic database update system. Automatically detects new and edited sql updates through file lists and hashing. Detects renames, deletes and is able to create and auto import full databases. * cleanups in main.cpp of world & bnetserver * refactoring in DatabaseWorkerPool.h & MySQLConnection.cpp

Make sure you re-run cmake, because boost::iostreams was added as dependency.
Maybe you need to install libboost-iostreams1.55-dev on unix as well.

Import every update manual until (included) those INSERT IGNORE updates for each database.

Thanks DDuarte and Shauren for your amazing ideas, help and advises.

In hope that nobody gets a "Your database structure is not up to date..." anymore ,-)

(cherry picked from commit 352012e531)
(cherry picked from commit 1f7f9feafc)

For 3.3.5:
* Synchronized ConfigureBoost.cmake with 6.x, libboost-filesystem1.55-dev also added as dependency!

Signed-off-by: Naios <naios-dev@live.de>
Signed-off-by: Nayd <dnpd.dd@gmail.com>

src/server/shared/Database/MySQLConnection.cpp

@@ -72,7 +72,7 @@ void MySQLConnection::Close()
     delete this;
 }
 
-bool MySQLConnection::Open()
+uint32 MySQLConnection::Open()
 {
     MYSQL *mysqlInit;
     mysqlInit = mysql_init(NULL);
@@ -137,13 +137,13 @@ bool MySQLConnection::Open()
         // set connection properties to UTF8 to properly handle locales for different
         // server configs - core sends data in UTF8, so MySQL must expect UTF8 too
         mysql_set_character_set(m_Mysql, "utf8");
-        return PrepareStatements();
+        return 0;
     }
     else
     {
-        TC_LOG_ERROR("sql.sql", "Could not connect to MySQL database at %s: %s\n", m_connectionInfo.host.c_str(), mysql_error(mysqlInit));
+        TC_LOG_ERROR("sql.sql", "Could not connect to MySQL database at %s: %s", m_connectionInfo.host.c_str(), mysql_error(mysqlInit));
         mysql_close(mysqlInit);
-        return false;
+        return mysql_errno(mysqlInit);
     }
 }