TODO list for File::BOM

Iron out bugs in the PerlIO::via interface.

  o Investigate bugs in PerlIO::via - patch?
  o Re-implement using XS?

Test coverage
  o Currently can't get Devel::Cover working on Perlio::via tests.

    Bizarre copy of HASH in aassign at /usr/local/lib/perl5/5.8.5/i686-linux/B.pm line 225.

    with newest Devel::Cover:

    Bizarre copy of ARRAY in aassign at /usr/local/lib/perl5/5.8.5/i686-linux/B.pm line 225.

Finalise API.

  o Make OO version?
    o Would need a different namespace

