linux: Add support for zram
Enable encrypted backing devices in fileystem configurations
ssh: Support knownHost public keys as strings
sshd: Fix typing for options which take paths
mupdf: build with -fpic
mupdf: build a shared library instead
openjpeg: provide .pc
zathura: mupdf plugin
Add unicode3 option to rxvt_unicode

Needed to user fonts patched for powerline.
ncmpc: propable fix for x86_64-darwin build error

@vcunat fixed syntax a bit. Close #2761.
swig: enable on Darwin (close #2326)

Verified on OS X 10.9.2 to build and check, dependents build fine too.

@vcunat enabled doCheck as it works for him on x86_64-linux;
also did style nitpick modification, and changed platforms to .all
according to the homepage http://www.swig.org/compat.html
Fixed link to installation instructions in README
Merge pull request #2763 from pSub/patch-1

Fixed link to installation instructions in README
webkitgtk: update to 2.4.3 (close #2640)
xorg: maintenance updates of a few modules
mesa: maintenance update 10.1.3 -> .4
hipchat: Update to 2.2.1107
hipchat: Fix access to /usr/share/X11/xkb

HipChat (or rather its copy of Qt) expects to find keyboard data in
/usr/share/X11/xkb. So use a LD_PRELOAD library to intercept and
rewrite the Glibc calls that access those paths. We've been doing the
same thing with packages like Spotify, but now this functionality has
been abstracted into a reusable library, libredirect.so. It uses an
environment variable $NIX_REDIRECTS containing a colon-separated list
of path prefixes to be rewritten, e.g. "/foo=bar:/xyzzy=/fnord".
Definitions for Open Dylan 2013.2 (Dylan Language Implementation)
Merge pull request #2770 from doublec/opendylan

Definitions for Open Dylan 2013.2 (Dylan Language Implementation)