Deletion of libuv-git and qemu-kvm

 * Not necessary to package the libuv fork from JuliaLang
 * qemu-kvm got merged into qemu with 2.0. So keeping this old version won't do anything good
Canto: 0.9.0 release + plus adjustments to the PKGBuilds (deps, architecture, buildwise)
Linux: Update to 3.17.3