- fix for issue 772

- fixed some issues in zstream that prevented to use "getline" in zipped streams 
- added a "pooled buffers" system to keep a cache of file descriptors. This is potentially dangerous though, but shaves several seconds of loading time on the PSP. If problems arise on other platforms I'll make it a compilation parameter
- gracefully fail when calling manacost information on a not properly initialized mana cost

JGE/src/JGE.cpp

@@ -556,6 +556,8 @@ void JGE::Pause()
 
     mPaused = true;
     if (mApp != NULL) mApp->Pause();
+
+    JFileSystem::GetInstance()->Pause();
 }
 
 void JGE::Resume()