Crazy auto decoding

[Gareth]

Modified the auto decoder to work with partial strings, the following
contains a octal, unicode, htmlentities encoded multiple times

<http://www.businessinfo.co.uk/labs/hackvertor/hackvertor.php?
input=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
%2B>