Add lock check method to Chart database.
Add Windows SEH exception handling to OpenGL texture compression threads.
Protect against very wrong results from dc:GetTextExtents().
Correct Options->Connections->OK behaviour when removing a connection.
Correct OpenGL symbol rendering for nPOT textures with FBO support.
Revert overzoom blurring on low performance systems to fogging instead.
Remove confusing warning message.
Update Authors list.