updated wkhtmltopdf and use patched qt

With stock version of qt4 wkthmltopdf lacks a lot of features, including:
  * Running without an X11 server
  * Printing more then one HTML document into a PDF file
  * Adding a document outline to the PDF file
  * Adding headers and footers to the PDF file
  * Generating a table of contents
  * Adding links in the generated PDF file
  * Printing using the screen media-type
  * Disabling the smart shrink feature of webkit
dogecoin: autotools build factored out
nginx: add lua module
Higan - a quick&dirty workaround

Higan uses a lot of hardcoded paths when it looks for runtime files
as shaders, icons and mainly BIOS files. So, we made a q&d wrapper
script: it copies all these files to $HOME/.config/higan in the 1st
invocation.
emulationstation: 1.0.2 -> 2.0.0-rc1
Higan: Updating builder.sh script

Now builder.sh will install a higan-config.sh script
to write auxiliary stuff on $HOME/.config/higan directory.
That way, higan searches locally and runs cleanly.

Obviously it's a hack, but the only other way is to do a huge patch on
upstream sources; personally I think it is better to work that type of
thing directly on higan sources.
nixos/nat: add forwardPorts for external->internal DNAT
[screenfetch] Bump to the stable release

Signed-off-by: Ricky Elrod <ricky@elrod.me>
Added missing curl dependency to RCurl package
nixos/network-interfaces: Sanitize sys-subsystem device names

Currently, nixos will allow for interface names with special characters
such as the hyphen to be used. This presents a problem when using
systemd device names as the namespace paths are separated using hyphens.
Within systemd, if a device name has a hyphen it should be replaced with
the escape sequence \x2d.

This patch sanitizes all interface names before they are used in a
systemd device string.
grub2: Add localizations
keepassx: update to 2.0-alpha6
Add proggyfonts collection

The Proggy Fonts are a font collection intended for fixed-width uses
like programming languages.

Signed-off-by: Josh Cartwright <joshc@eso.teric.us>
nixos/iso-image: Fix grub-mkimage requiring a prefix
nixos/install-grub: Correct store path for search
Merge pull request #3949 from wkennington/master.grub

grub2: Add localizations
Merge pull request #3843 from wkennington/master.iffix

nixos/network-interfaces: Sanitize sys-subsystem device names
Merge pull request #3952 from tomfitzhenry/update-keepassx-to-2.0-alpha6

keepassx: update to 2.0-alpha6
Mesos: services
Merge pull request #3865 from edwtjo/dogecoin-1.8.0-refactor

dogecoin: autotools build factored out