Version bumped to 1.05.1

This fixes the scrape data issue that has long plagued this software (2012).
Filtering other data is fine, but scrape data ends up going to and from the
torrent client and the tracker anyway, and they don't like the custom filters.
This was confirmed by finding and going through the original PHPBTTracker
software code and comparing it with RivetTracker.

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.

Fixes current session username display for hidden tracker
--Simply log out and log back in to reset session

Old XSS fix from 2012/03/14; somehow evaded getting updated!

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

Import from the old rivettracker git repository at sourceforge (amisaph/amisapphire branch)