Fixed badly handled procedure of clients originally done in the name of
security.
Initailly, hash/peer handling failed from the first escaping 'fixes'...
...then eventually, tracker responds with HTTP Status 404 after the second
validation 'fix'.
Finally tracked down after two years... shame.
Checks added to some files: torrent_functions.php, tracker.php
dltorrent.php's check changed to authenticate no matter what
Some fixes and modifications from 2014: index.php, funcsv2.php,
batch_upload.php, newtorrents.php, install.php, editconfig.php
Version bumped up to 1.05