[Trusty] Version bumps
Introduce sys-apps/ureadahead and sys-kernel/ubuntu-sources to improve desktop login times and performance
Merge branch 'master' of https://github.com/shiznix/unity-gentoo
Update ureadahead systemd service files to start earlier in boot chain and fix false report of service failure
Update NOTES with reason for including gnome-base/gnome-desktop
Update version_check.sh to check for sys-kernel/ubuntu-sources version
Add ureadahead packfile update trigger to eclass/ubuntu-versionator.eclass. Limit ureadahead collection to 120 seconds so pack file does not get too large, thus reducing boot time. Trusty version bumps for gnome-panel,compiz and unity
Add pkg_postinst instructions on enabling ureadahead. Update ureadahead logic in ubuntu-versionator.eclass so it only re-profiles when ureadahead service files are installed and enabled
[Trusty] use gnome 3.10 desktop