gzip-1.6: release imminent

[Jim Meyering]

I'm going to release gzip-1.6 very soon.
If anyone has suggestions/request for inclusion, speak up quickly.

NEWS currently looks like this:

  ** New features

    gzip now accepts the --keep (-k) option, for consistency with tools
    like xz, lzip and bzip2.  With this option, gzip no longer removes
    named input files when compressing or decompressing.

  ** Bug fixes

    gzip -d no longer malfunctions with certain invalid data in 'pack' format.
    [bug introduced in gzip-0.8]

    When overwriting, gzip no longer acts as if you typed "y" when you type "n",
    on some platforms when compiled with optimization.
    [bug introduced in gzip-1.3.6]

    zgrep no longer malfunctions with a multi-digit context option like -15.
    Now, it passes that option to grep (equivalent to -C15) just as it does
    for single-digit options. [bug introduced in gzip-1.3.12]

    zmore now acts more like 'more', and is more portable to POSIXish hosts.