lua-5.1, lua-5.2: fix typo / copy-n-paste mistake in configurePhase

s/LDLAGS/LDFLAGS/g in both packages
Fix repeated typo

"Can either by" should be "Can either be". There are three occurrences of this mistake, all in descriptions of configuration options.
Google Compute Image needs the interface to be named eth0 for google tools to work properly
Google Compute Image: fetch host keys if possible
pythonPackages.pykka: Update from 1.1.0 to 1.2.0
mopidy: Update from 0.15.0 to 0.18.3

Also add the mopidy-spotify extension.
Merge pull request #3245 from rastus-vernon/patch-1

Fix repeated typo
tarsnapper: add sha256 to fix fetchgit assertion
haskell-agda-stdlib: properly reference ghc and runhaskell
Merge pull request #3242 from phi-gamma/master

lua-5.1, lua-5.2: fix typo / copy-n-paste mistake in configurePhase
siege: Build with OpenSSL
haskellPackages.ekg: Update to 0.4.0.1
libosinfo: new package

libosinfo contains "info about OSs, hypervisors and (virtual) hardware
devices".

It is a dependency of gnome-boxes (a virtual and remote machine
application).
gnome-boxes: new package

gnome-boxes is a simple GNOME 3 application to access remote or virtual
systems.

Tested by creating a Ubuntu 14.04 VM from ISO image and playing around
with it. I cannot seem to get keyboard input to the VM. Mouse works
though.
Merge pull request #3253 from bjornfor/gnome-boxes

Add Gnome Boxes (access remote or virtual systems)
haskellPackages: use static-enabled 'gmp' to enable statically linked Haskell binaries

Pass '-optl-static -optl-pthread' to GHC to enable static linking.

Fixes <https://github.com/NixOS/nixpkgs/issues/3193>. Further details can be
found at <http://permalink.gmane.org/gmane.linux.distributions.nixos/13526>.
ghc: update version 7.8.2 to 7.8.3
haskell-packages.nix: cosmetic
Switch default Haskell compiler to GHC 7.8.3.
cabal: cosmetic