Merge pull request #2536 from CodeBlock/poly-font

Poly font
Merge pull request #2551 from CodeBlock/source-code-pro

Add Source Code Pro font
Use `find` instead of cp for installFonts.

This allows fonts to be installed from anywhere in an unzipped file
rather than having to cd deep into the directory and come back out in
order for e.g. `forceCopy` to work correctly.
sysdig: update to 0.1.81
haskellPackages.stripe: Update to 0.8.1
haskellPackages.snapletStripe: New expression
pythonPackages: add pyrax

Signed-off-by: Austin Seipp <aseipp@pobox.com>
nixpkgs: add COPRTHR 1.6

COPRTHR is a very excellent little SDK implementing OpenCL and related
tech for regular multicore processors, as well as things like my new
Parallella (along with remote/networked OpenCL compute support).

Signed-off-by: Austin Seipp <aseipp@pobox.com>
haskell-shake: update to version 0.11.7
Merge pull request #2516 from jwiegley/dovecot

Allow Dovecot to build with clucene, and on any Unix
dovecot: build Linux packages on Hydra, and enable local builds on all other systems
Merge pull request #2517 from jwiegley/texinfo

Disable Texinfo tests on Darwin

https://github.com/NixOS/nixpkgs/issues/2338
Merge pull request #2531 from jwiegley/djinn

Add an expression for the Haskell library djinn
r-generic-builder.nix: build packages from the extracted $srcdir so that we have a chance to patch them
r-RcppArmadillo: fix build (and update to 0.4.300.0)
re-introduce phpXdebug as phpPackages.xdebug and bump to 2.2.5

this uses buildPecl now.
libav: Disable tests

These appear to fail randomly sometimes:

http://hydra.nixos.org/build/10854615
Add liblbfgs 1.10
dovecot-2.2.x: add missing sqlite build input

Fixes <http://hydra.nixos.org/build/10863508/nixlog/1/raw>.
Update ffmpeg to 2.2.2