Remove close/reopen logic for file handle and fix Ecc crash on empty

[Ragora]

Remove the funny close/reopen logic I introduced in the last PR #12 I had merged in and fix crashes on 0 length files. Everything works on my Linux Mint AMD64 box here, though I don't know about Windows as per the last PR.

[Ragora]

Sorry about all the tacked on commits, seems I'm not quite on top of my game today. Want me to rebase them down or is it good?

[xdevelnet]

Everything works on my Linux Mint AMD64 box here

hi @Ragora
can you provide build instructions under linux, please?

Thank you :)

[Ragora]

@xdevelnet Currently only Ecc is building under Linux for me through my repository here: https://github.com/Ragora/Serious-Engine/tree/LinuxPort

There is word of Ryan C Gordon having working ports and is talking to Croteam about releasing it: https://twitter.com/icculus/status/708326894597488642

Otherwise, my repository currently has a bunch of build errors for anything aside from Ecc. But you can attempt a build using cmake in the sources folder over there: cmake . && make

A full port is probably going to take more work than I'm currently able to put in on it, so I'm mostly hoping Ryan can release.