Log Message:
- updated to 1.52
Changelog:
1.52  02 Oct 2008
      [FIXES]
      - Better handling of failures during filter loading
        (rlane10 via \ 
http://www.nntp.perl.org/group/perl.cpan.testers/2008/10/msg2361238.html)

1.51  28 Sep 2008
      [FIXES]
      - Support PDFs with 24-bit offsets in the xref stream (PDF v1.5 only)
        (thanks to Dan Richman for reporting the problem and providing an example)

1.50  20 Sep 2008
      [ENHANCEMENTS]
      - Support for reading PDF 1.5 compressed object streams and cross \ 
reference streams.
        (we cannot write this style, but we can append to it)
      [FIXES]
      - Decompression of PNG-filtered streams was totally broken.
      - Deleting pages now also deletes back references from annotations on that \ 
page.
      - cleanse() now removes PieceInfo data.  I have no idea what
        PieceInfo does, but it had a whole bunch of page back links
        that broke page deletion.