Solved bug with QSqlDataBase

Before removing a database, has to be sure that the variable associated with the database is out of scope

src/libs/opmapcontrol/src/core/pureimagecache.cpp

@@ -227,6 +227,7 @@ namespace core {
 #endif //DEBUG_PUREIMAGECACHE
 
             QString db=dir+"Data.qmdb";
+			{
 				QSqlDatabase cn;
 			
 				cn = QSqlDatabase::addDatabase("QSQLITE",QString::number(id));
@@ -244,6 +245,7 @@ namespace core {
 					}
 					cn.close();
 				}
+			}
 			QSqlDatabase::removeDatabase(QString::number(id));
         lock.unlock();
         return ar;