TODO 491 B

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  1. Possible upgrades to gzfilebuf:
  2. - The ability to do putback (e.g. putbackfail)
  3. - The ability to seek (zlib supports this, but could be slow/tricky)
  4. - Simultaneous read/write access (does it make sense?)
  5. - Support for ios_base::ate open mode
  6. - Locale support?
  7. - Check public interface to see which calls give problems
  8. (due to dependence on library internals)
  9. - Override operator<<(ostream&, gzfilebuf*) to allow direct copying
  10. of stream buffer to stream ( i.e. os << is.rdbuf(); )