fixes two issues via patches to get knetwork compiling

kopete-4.10.4-kopete-linphonemediaengine.patch
----------------------------------------------
patch copied from here:
  https://bugs.kde.org/show_bug.cgi?id=318825

kopete-4.10.4-kopete-stun.patch
-------------------------------
  when compiling kopete/protocols/jabber/googletalk/libjingle/talk/session/phone/channelmanager.cc
  it would produce this error:

  kopete/protocols/jabber/googletalk/libjingle/talk/p2p/base/stunrequest.h:91:9: error: ‘StunMessageType’ does not name a type

  problem:
    this is cased by a cyclic use of stun.h, stunrequest.h and channelmanager.cc with the outcome,
    that kdenetwork couldn't be compiled since kopete fails to build.

  solution:
    move the StunMessageType enum into its own #ifndef
libspotify: add darwin library
heroku gem: add expression
Merge pull request #709 from qknight/kdenetwork-kopete-fixes

fixes two issues via patches to get knetwork compiling; both patches are minimal and mine is now also upstream
kde4: unify used libcanberra

I wondered why I'm getting two versions in the closure of KDE apps.
kile: minor update
kdiff3: maintenance update
Add loopback network device and localhost entry to /etc/hosts for VM tests.
Update acpi-call for Linux 3.10 compatibility
Update fdm
testdisk: Add to channel
Add CentOS 6.4 to vm images
install_name_tool: add expression
pyspotify: fix build on darwin

* use install_name_tool to have _spotify.so point to the correct library
pyspotify: update to latest version
portaudio: fix build on darwin

* remove alsaLib from build inputs
* add --build=x86_64 to configure flags
* add --without-oss to configure flags
* add --enable-static to configure flags
* add --enable-shared to configure flags
* add framework header files
* disable failed tests
* copy all headers on install
* build with gccApple
pyaudio: fix build on darwin

* build with '--static-link' flag
* set 'PORTAUDIO_PATH' environment variable
Merge branch 'libspotify' of git://github.com/lovek323/nixpkgs into lovek323-libspotify

Conflicts:
	pkgs/top-level/all-packages.nix
Adding a wrapper for sflphone-gnome (to find gtk3 schema files)
Updating libzrtpcpp to 2.3.4.

I think it fixes the security threats exposed in:
http://blog.azimuthsecurity.com/2013/06/attacking-crypto-phones-weaknesses-in.html