Improved CLI
Fixed persistent cache
Rewrote checkpoint mechanism. (allow to run multiple commands)
exit the QEMU monitor after sending a command
Fix archlinux recipe and use boot2kameleon iso
Added virtualbox/archlinux recipes (i686 and x86_64)
Created the cache archive only once
Restore kameleon_uuid in a second build to allow checkpoints
Added checkpoints with virtualbox (using vboxmanage snapshot..)
Added debian7 i386 recipe for virtualbox
Fixed extlinux installation for debian7
take into account the checkpoint during clean