Add the "netsnmp" Python module, interfacing to net-snmp.

DESCR:
This is the Python 'netsnmp' extension module. The 'netsnmp' module
provides a full featured, tri-lingual SNMP (SNMPv3, SNMPv2c,
SNMPv1) client API. The 'netsnmp' module internals rely on the
Net-SNMP toolkit library.
Add py-netsnmp.
Note addition of net/py-netsnmp version 5.7.2.1.
Factor out some common settings so they can be shared
with the newly added net/py-netsnmp package.
Update to 1.8.15nb10 using liferea-current.
Updated www/liferea to 1.8.15nb10
Remove liferea-current after it was used to update liferea.
Removed www/liferea-current successor www/liferea [wiz 2014-08-05]
Build libreoffice4 using the upstream tarballs of the converter packages.
Needed since this libreoffice4 version is not (yet) compatible with the
librevenge-based packages we have in pkgsrc.

Based on a patch by Uwe Klaus in PR 49060.
Bump PKGREVISION.
Updated misc/libreoffice4 to 4.2.5.2nb2
Update to 1.11:

Hi everyone,

once again we have a new xcb-proto release. And as always, this is mostly minor bug
fixes and things that libxcb 1.11 will need.

Thanks to everyone involved!

Changes:

Daniel Martin (9):
      xv: Add align. pad in struct AdaptorInfo
      xproto: Fix EnterNotify documentation
      schema: Set default attribute values
      schema: Add attribute 'name' to <fd>
      schema: Remove dec-or-hex-integer and hex-integer type
      schema: Restricted enum item values
      xinput: Add missing pad in DeviceResolutionCtl
      xinput: Add missing pad in XIChangeHierarchy
      xkb: Add missing modLatches as comment to LatchLockState

Keith Packard (1):
      Also track directly imported modules in a separate list

Peter Harris (4):
      Track pad count at the module level
      Support <pad align="n" />
      xkb: Use <pad align="4" /> in GetMap
      xkb: Fix use of nKTLevels

Ran Benita (1):
      Add <fd> to xml-xcb.txt

Robert Ancell (1):
      dri2: Add notes on lists that should be linked to their length fields but are not.

Uli Schlachter (1):
      Release xcb-proto 1.11

Vincent W. Chen (2):
      Remove extraneous spaces between <value> tags
      xprint: Fix <field type="STRING8"> in PrintGetAttributes reply
Updated x11/xcb-proto to 1.11
Update to 1.11, to match xcb-proto.
Updated x11/py-xcbgen to 1.11
Update to 1.11:

Not only is there a new xcb-proto release, but we now also have libxcb 1.11.
This fixes some bugs that we had, e.g. with 64 bit fields and the present
extension.

Changes:

Alan Coopersmith (2):
      Document failure modes of xcb_connect*() functions
      Fix typos & awkward wording in tutorial

Alexander Mezin (1):
      xcb.h: add 'struct' before xcb_setup_t, xcb_query_extension_reply_t

Daniel Martin (1):
      Handle <pad align="n" /> between lists

Gaetan Nadon (11):
      autoconf: use XORG_DEFAULT_OPTIONS
      autoconf: use the warning variables from xorg
      autoconf: AC_INIT: add bug url
      autoconf: comment and layout the initialization section
      autoconf: require libtool minimum level 2.2
      autoconf: fix warning by replacing deprecated AC_HELP_STRING
      autoconf: use default xorg configuration for doxygen documentation
      autoconf: replace all tabs with spaces
      man: build static man pages using xorg patterns
      generated man pages: build without hard coded extension
      generated man pages: use xorg footer and no hard coded extension

Jeremy Huddleston Sequoia (2):
      xcb_open: Minor code cleanup for better readability
      xcb_open: Improve abstraction for launchd secure sockets

Keith Packard (4):
      Only #include directly referenced module header files
      Validate .pc file Requires lines
      Update .pc file Requires lines to express full dependencies
      Ensure xcb owns socket and no other threads are writing before send_request

Kenneth Graunke (1):
      Force XCB event structures with 64-bit extended fields to be packed.

Michael Haubenwallner (1):
      bug#79986: include system headers early

Peter Harris (1):
      Support <pad align="n" />

Ran Benita (8):
      Add comments about how _xcb_conn_ret_error() works
      c_client.py: remove useless 'today' variable
      c_client.py: remove trailing whitespace
      c_client.py: prefix all monkey-patched fields with c_
      c_client.py: make the man page output deterministic
      c_client.py: remove useless generated comments
      c_client.py: remove trailing whitespace from generated files
      c_client.py: remove more trailing space from generated files

Uli Schlachter (6):
      Remove tabs and trailing whitespaces
      xcb_disconnect(): Fix leak with error connections
      Make xcb_disconnect(NULL) safe
      Add doxygen documentation to functions in xcbext.h
      Bump xcb-proto requirement to 1.11
      Release libxcb 1.11
Updated x11/libxcb to 1.11
Update to 5.4.2:

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5.4.2
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* Issue #236: Corrected regression in execfile implementation for Python 2.6.
Updated devel/py-setuptools to 5.4.2
add support for apache24