cdrkit.org was down for a while, change to use ibiblio as source
Revert "XZ utils is required by tar"

This reverts commit ce265a569c5e8d32de3b8ea78aa16abf68a962c7.

xz-util should be xz-utils here, and according to this list, http://releases.ubuntu.com/releases/trusty/ubuntu-14.04-desktop-amd64.manifest, it's already in it, since we bumped the ubuntu version, we don't need to install it by ourselves anymore.
Merge pull request #47 from PeterDaveHello/update_readme

Revert "XZ utils is required by tar"
Updated Kernel to 3.17
Merge branch 'cdrkit_fix' of https://github.com/PeterDaveHello/foldingathome into PeterDaveHello-cdrkit_fix
Merge branch 'PeterDaveHello-cdrkit_fix'
Merge branch 'master' into arch_tuning
upgrade linux_firmware
upgrade linux_firmware
Updated Kernel to 3.17.2
Merge branch 'upgrade_linux_firmware' of https://github.com/PeterDaveHello/foldingathome into PeterDaveHello-upgrade_linux_firmware
Merge branch 'PeterDaveHello-upgrade_linux_firmware'
Merge branch 'master' into arch_tuning
Updated GCC to 4.9.2