execute clean command without asking confirmation

old command line option are still present but no more in config file
this allow to override easily on command line config parameters

--no-sync as the same beneficts

if no filter given, list in all online repository
Also remove list -S, can be done by is -s ''

repo command can now purge cache of database

list -S only list images inside searchable repositories

repo have now -s and -u option
new display and color

this state can be matched by option -l and -r in repo command

build -p recreate payload file if already exsits

this option allow list of image without syncing database. Very useful for completion

is list command now only list image inside repositories.
many option can be given to have a custom output
globbing is allowed on images

all options have now a long mode
some options name have changed

This command allow a clean listing of repositories

new option --preserve, -p is added

completion and is add -p <tab> doesnt work because cword is used and doesn't escape options from the list

gonnet-ifier...