add simple rsnapshot module
implement bjornfors comments
rsnapshot: extraConfiguration -> extraConfig
rsnapshot: do not use /etc/rsnapshot.conf
Merge pull request #270 from aristidb/master

Add simple rsnapshot module
Disallow Memtest86+ with GRUB 1

The GRUB entry as given is syntactically invalid.
Add some missing option types
Make GRUB 2 the default

Fixes #269.
Give the VDI generator more memory

These out of memory conditions are highly unpredictable, which is very
annoying.

http://hydra.nixos.org/build/6411393
Amazon's pv-grub is GRUB 1
Lack of laziness strikes again...
Generate a VirtualBox appliance (in OVF format) instead of a disk image
kde4: install mysql by default since it's used by akonadi
Don't expand paths during VirtualBox image generation
Add the demo user to the vboxsf group to allow mounting of shared folders
Only start the VirtualBox guest services if we're in a VirtualBox VM
Add more video drivers to the VM image

This might allow it to work in VMware and QEMU.
Make it easier to define timer units for services

Systemd services now have a startAt attribute.  If set, NixOS will
automatically emit a timer unit that causes the service to start at
the specified time.  For example:

  systemd.services.foo =
    { script = "... bla bla ...";
      startAt = "02:15";
    };

causes the given script to be started at 02:15 every day.
Fix eval error
Manual: icecat -> firefox