e2fsprogs: Update to 1.42.12
less: Update to 468
wdiff: Update to 1.2.2
sysstat: Update to 11.0.1 and install systemd units
Bring back Boost 1.55 for now
mercurial: Update to 3.1.1
iproute2: Update to 3.16.0
Add python package: snapper-gui

Graphical frontend for snapper.
Not tested, yet.
update links
wineUnstable: Bump version to 1.7.27
Added luaPackages, moved lua sockets and lua filesystem to luaPackages, fixed mudlet deps
Simplified lua-packages function arguments to look nicer in all-packages
Switched from import to callPackage
Refactored to use callPackage right
Added description to languages-support.xml
Assertion throws err message on fail in buildLuaPackage
further improvements to buildLuaPackage
travis-nox-review: build tarball job as evaluation test
fix eval
Fixes to the travis script

- Build 4 jobs at a time (might help with the timeout)
- Be quiet with pip (should make the output more readable)