pythonPackages.sympy: add expression
Manual: Don't show "Default: none"
Manual: Render strings containing special characters as indented strings
Manual: Escape $
Manual: Render multi-line strings properly
Remove the dhclient module

It's no longer used by NixOS (replaced by dhcpcd).
openssh: build on unix platforms
Decrease verbosity of VirtualBox image generation
firefox: Update to 25.0
Update SlimerJS
Add pngquant, it converts 24/32-bit RGBA PNGs to 8-bit palette with alpha channel preserved.
Add gitflow

A collection of Git extensions to provide high-level repository operations for Vincent Driessen's branching model
Merge pull request #1139 from offlinehacker/pkgs/pnquant/add

Add pngquant, it converts 24/32-bit RGBA PNGs to 8-bit palette with alpha channel preserved.
Merge pull request #1142 from lovek323/sympy

pythonPackages.sympy: add expression
Merge pull request #1149 from offlinehacker/pkgs/gitAndTools.gitflow/add

Add gitflow
ninka: update to 1.1 and refactor
pythonPackages.faker, pythonPackages.fake_factory: add expressions

close #1125
googleMusicmanager: add expression

close #1056
haskell-OpenGL: update 2.9.x branch to version 2.9.1.0
haskell-gloss: update to version 1.8.1.1