Do not write ?> into config.php to avoid whitespace output

Hi,

I do not know if we can consider this as a bug but it could be interesting to fix it. The problem is when you have a blank line (\n) after the "?>" in the config.php file, the download/file does not display avatars anymore because a problem of character.

How to reproduce:

Just add a blank line after the end of php script "?>" and reload an avatar display.

Examples:

With a blank line: (image) http://community.olympe.in/download/file1.php?avatar=121_1337297805.png&header=yes
With blan line : (binary) http://community.olympe.in/download/file1.php?avatar=121_1337297805.png

Without blank line (image) http://community.olympe.in/download/file2.php?avatar=121_1337297805.png&header=yes
Without blank line (binary) http://community.olympe.in/download/file2.php?avatar=121_1337297805.png

Web observe a small difference between the two binaries at the end (just on char).

Best regards.
Sam