Update qt4 packages to 4.8.6.

Qt 4.8.6 provides overall over 200 improvements and bug fixes, for
example:

    Security Fix for XML Entity Expansion Denial of Service (the
    "Billion Laughs" attack)
    Better support for Mac OS X 10.9 Mavericks
    Many customer requested bug fixes, for example QTBUG-15116,
    QTBUG-21371, QTBUG-8990, QTBUG-28601, QTBUG-20946, QTBUG-30276,
    QTBUG-29572 and QTBUG-13237 (just to name a few)
    MinGW binary packages are now built with MinGW-w64 based
    toolchain with gcc 4.8.2
    Basque translation added and many other translations improved
Updated x11/qt4 to 4.8.6
Import khal-0.2.0 as time/khal.

Khal is a standards based CLI (console) calendar program. CalDAV
compatibiliy is achieved by using vdir/vdirsyncer as a backend,
allowing syncing of calendars with a variety of other programs on
a host of different platforms.

khal is currently in an early stage of development, has a limited
feature set and is probably full of bugs. If you do try it out,
please make sure you have a backup of your date and please report
back any bugs you might encounter.
+ khal.
Added time/khal version 0.2.0
Import tinyxml2-2.1.0 as textproc/tinyxml2, packaged for wip by
Niclas Rosenvik.

TinyXML-2 parses an XML document, and builds from that a Document
Object Model (DOM) that can be read, modified, and saved.

TinyXML-2 uses a Document Object Model (DOM), meaning the XML data is
parsed into a C++ objects that can be browsed and manipulated, and then
written to disk or another output stream. You can also construct an XML
document from scratch with C++ objects and write this to disk or another
output stream.

TinyXML (textproc/tinyxml) served the needs of the original author for
many years; but it uses memory inefficiently, and doesn't perform as
well as desired for mobile devices. The author wanted an XML parser that
was a little more modern, a little simpler (the "tiny" had been lost a
little over the years), and was a good fit for Android.

This led to TinyXML-2.
+ tinyxml2.
Added textproc/tinyxml2 version 2.1.0
Import libpgf-6.14.12 as graphics/libpgf, packaged for wip by Niclas
Rosenvik.

LibPGF is a library for encoding and decoding the progressive graphics
file (PGF) format. PGF is is based on discrete, fast wavelet transform
with progressive coding features and has both lossy and lossless
compression.
+ libpgf.
Added graphics/libpgf version 6.14.12
Update to 2.8.2:

v2.8.2 26th May 2014
  - Added the QsciLexerAVS class.
  - Added the QsciLexerPO class.
  - Added the --sysroot, --no-sip-files and --no-qsci-api options to the Python
    bindings' configure.py.
  - Cross-compilation (specifically to iOS and Android) is now supported.
  - configure.py has been refactored and relicensed so that it can be used as a
    template for wrapping other bindings.
  - Bug fixes.

v2.8.1 14th March 2014
  - Added support for iOS and Android.
  - Added support for retina displays.
  - A qscintilla2.prf file is installed so that application .pro files only
    need to add CONFIG += qscintilla2.
  - Updated the keywords recognised by the Octave lexer.
  - Bug fixes.
Updated x11/qt4-qscintilla to 2.8.2
Revert update; there's also py-qt4-qscintilla and I'm not prepared
to touch that right now.
Needs qt4-libs 4.7.0 or newer.
Mention import of {py-,}qt4-qscintilla in 2010, and add many forgotten
updates.
Add comment:
when updating this, also update py-qt4-qscintilla
XXX: these two should share a Makefile.common
+ at-spi2-atk-2.12.1 [needs atk>=2.11.90], atk-2.12.0, exim-4.83,
  php-tt-rss-1.13, py-qt4-4.11, py-qt4-qscintilla-4.8.3,
  qt4-qscintilla-4.8.3, py-sip-4.16.1.
Update comment to note that qemu 2.0.0nb4 or newer should work.
Update py-webassets to 0.10.1.

0.10.1 (2014-07-03)
    - Python 3 fixes.
    - Windows fix (Ionel Cristian Mărieș).

0.10 (2014-06-15)
    - Add autoprefixer filter (Vincent Driessen).
    - Add require.js filter (metagriffin, Erik Taubeneck)
    - A lot of bug fixes and small improvements.