php53: fix on darwin

* add libssh2 to build inputs (configure fails without this)
* link with stdc++
* add icu/lib directory to DYLD_LIBRARY_PATH (and wrap binaries with this
  environment variable
* add libiconv to build inputs
* fix --with-iconv configure flag (was --with-iconv-dir which is not a valid
  flag)
php53: add optional pcntl flag
php53: restore nix gd version
php53-xdebug: add expression
update pulseaudio to 4.0 and sbc to 1.1
remake: bump from version 3.81+dbg-0.2 to 3.82+dbg-0.6

This version needs readline. And the license is GPLv3. Also, add
meta.platforms and meta.maintainers attributes.
libcap needs to be a propagated build input for pulseaudio
Merge pull request #667 from bjornfor/remake

remake: bump from version 3.81+dbg-0.2 to 3.82+dbg-0.6
add smplayer 0.8.5
virtualbox-guestadditions: fix xorg incompatibility

A recent X update broke VirtualBox guest additions (vboxvideo driver version
mismatch, desktop won't start). This fixes it.

Here is the error log:

 (II) "glx" will be loaded by default.
 (II) LoadModule: "glx"
 (II) Loading /nix/store/kzvmnjlps51q4piqmwr7zbmxcg2z9vgk-xorg-server-1.13.4/lib/xorg/modules/extensions/libglx.so
 (II) Module glx: vendor="X.Org Foundation"
 	compiled for 1.13.4, module version = 1.0.0
 	ABI class: X.Org Server Extension, version 7.0
 (==) AIGLX enabled
 Loading extension GLX
 (II) LoadModule: "vboxvideo"
 (II) Loading /nix/store/4kbxi00h8xsmfgbws2qqh674lcfp03h6-VirtualBox-GuestAdditions-4.2.14-3.2.46/lib/xorg/modules/drivers/vboxvideo_drv.so
 (II) Module vboxvideo: vendor="Oracle Corporation"
 	compiled for 10.12.0, module version = 1.0.1
 	Module class: X.Org Video Driver
 	ABI class: X.Org Video Driver, version 12.0
 (EE) module ABI major version (12) doesn't match the server's version (13)
 (II) UnloadModule: "vboxvideo"
 (II) Unloading vboxvideo
 (EE) Failed to load module "vboxvideo" (module requirement mismatch, 0)
 (II) LoadModule: "vboxmouse"
 (WW) Warning, couldn't open module vboxmouse
 (II) UnloadModule: "vboxmouse"
 (II) Unloading vboxmouse
 (EE) Failed to load module "vboxmouse" (module does not exist, 0)
 (EE) No drivers available.

Fatal server error:
 no screens found
virtualbox: make guest additions use driver according to xserver version
smplayer: add platform and set license to `stdenv.lib.licenses.gpl3Plus`
virtualbox: minor update, lock versions with guest-additions

I saw no reason to use requireFile, it seems normally downloadable.
Merge pull request #670 from iyzsong/smplayer

add smplayer 0.8.5
youtube-dl: upgrade to 2013.06.21
linux-3.2: upgrade to 3.2.47
Merge pull request #671 from bjornfor/virtualbox

virtualbox-guestadditions: fix xorg incompatibility
winswitch: Basic somewhat working version.

Wow, this is one of the most dangerous programs I've seen in a while. It not
only tries to probe for a package manager to install dependencies but also
tries to execute a whole bunch of programs in $PATH. That's why I decided to
override the postFixup phase for now in order to get rid of the current $PATH
and meanwhile getting the basics working.

So, I'm still not sure how to do the best implementation here on NixOS without
allowing winswitch to be too invasive and without restricting it too much so
that it's of no use.

But let's figure that out once we trimmed down the radiation level of this
"living" thing ;-)

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
gpgme: Update to latest upstream version 1.4.1.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
python-packages: Add new package pyparted v3.10.

This is one of our required dependencies for the soon-to-be-packaged blivet
library.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>