Update to version 9.20, including security fix.

Changes:
- (libptytty) fix bug that prevented urxvtd from writing utmp
  entries when using --fork (reported by Ryan Kavanagh).
- security bugfix: window property values could be queried even
  in secure mode (reported by Phillip Hallam-Baker).
- fix build when perl is enabled and fading is disabled.
- fix regression that broke continuous scrolling when pressing
  and holding the scrollbar up or down button, gentoo bug #493992.
- increase the maximum length of a command sequence to 32k bytes,
  to allow longer OSC sequences (previous limit was 2k).
- new Ctrl-Meta-c and Ctrl-Meta-v bindings to interact with
  the CLIPBOARD selection.
- new extension: selection-to-clipboard.
- the extensions macosx-clipboard and macosx-clipboard-native
  are deprecated and will be removed in the next release.
  Support for the clipboard on OS X can be more generally
  enabled by setting the XQuartz preference to sync the OS X
  pasteboard and the X11 clipboard.
Note update of rxvt-unicode
Fix build on NetBSD-current, patch from Anon.
While here: set LICENSE, add comments to patches.
devel/gps: Fix build on SunOS by using COMPILER_RPATH_FLAG

The SunOS linker doesn't understand -rpath, so replace it with
COMPILER_RPATH_FLAG to fix build on SunOS.

Also removing empty directories in the post-install target is not
necessary on pkgsrc.  The SunOS find program doesn't recognize -empty
switch, remove the redundant command to avoid error messages.
Initial import of py-more-itertools, version 2.2, into the NetBSD Packages
Collection.

A collection of several routines not found in itertools, meant to operate on
itertables.
add & enable py-more-itertools
Added devel/py-more-itertools version 2.2
Initial import of py-jaraco_util, version 10.0.2, into the NetBSD Packages
Collection.

jaraco.util contains a number of nominally useful, reusable classes and
functions. They're designed to be intuitively named and self-documenting
(many with extensive doctests).
add & enable py-jaraco_util
Added devel/py-jaraco_util version 10.0.2
Updated to version 8.9

8.9
    Documentation is now published at https://pythonhosted.org/irc.

8.8
    Issue #35: Removed the mutex during process_once.
    Issue #37: Deprecated buffer.LineBuffer for Python 3.

8.7
    Issue #34: Introduced buffer.LenientDecodingLineBuffer for handling input
    in a more lenient way, preferring UTF-8 but falling back to latin-1 if the
    content cannot be decoded as UTF-8.

8.6
    Introduced 'Manifold' as an alias for irc.client.IRC. This better name will
    replace the IRC name in a future version.
    Introduced the 'manifold' property of SimpleIRCClient as an alias for
    ircobj.
    Added 'manifold_class' property to the client.SimpleIRCClient to allow
    consumers to provide a customized Manifold.
Updated net/py-irclib to 8.9
www/aws: Fix build for different zlib and libssl locations

The configuration for the location of libz and libssl both were wrong,
and they were corrected with their respective BUILDLINK_PREFIX.

In addition, regardless of where libssl is located, the standard location
(/usr/include) was searched instead of relative to the library.  This
required a patch to the GPR build in order to pass -I<loc> to the
compilation of C files.

The unnecessary removal of empty directories was removed as SunOS find
does not support the -empty switch.

Tested on Joyent dev area where both libz and libssl are not at /usr/lib.
www/aws: Link aws tools with runpath to libssl

The aws tools were linked to libssl without rpath.  If libssl is not
located in a standard library search path, the rtld will not be able
to find it (as seen on Joyent dev area).

This change links the libssl runpath to the tools.
www/aws-demos: Fix libz and libssl paths

The libz and libssl paths were not correctly specified. To correct,
BUILDLINK_PREFIX has been used.