[Lazarus] Memory leaks

[Antonio Fortuny]

>
> Not that much, but the problem is that many code runs fine due that bug,
> using a freed object (not intentionally). Maybe some regexp replaces
> will help you.
>
> You can review only code that deals with Indy activities.
i've done it actually. It took a reasonable time to explore and 
surprisingly, there is no Something.Free but only FreeAndNil(Others)

Even when I get a map out of the compilation process I'm not able to 
point out where the rubbish blocks could hide themselves.
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