Formatting fixes
clara impi: getmac() show an error when the host doesn't exist
clara images: use ":" to separate ip/hostnames instead of ",". Fix #34
'clara images initrd' Allow to specify the path of the generated files. Fix #33
clara repo add: add option to pass reprepro flags. Fix #27
clara images create: do not assume that the mirror has the formar server+"/debian"
remove the files FEATURES, this information is now in the manpages
update changelog and release