Attempt to fix & improve error detection:

- use std::fstream instead of boost::iostreams for properly working flush
- removed some catch-all blocks
- reduce catch scope of some try/catch blocks to clearly indicate intent

lib/gameState/CGameState.cpp

@@ -569,7 +569,6 @@ void CGameState::initNewGame(const IMapService * mapService, bool allowSavingRan
 			catch(...)
 			{
 				logGlobal->error("Saving random map failed with exception");
-				handleException();
 			}
 		}