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...

info command is used to get information about an image. It will replace list command

this command is and helper to chroot inside payload mounting /{proc,sys,dev,dev/pts} fs
inside the chroot and disable daemon restart

this also fix bad display of all changelog in verbose mode

we now have a changelog command, no needs to overload list output

we can now set a minimal installsystems version in your description
install will not be able to read those images

Add tarfile from python 2.7.2

This allow method add in Tarfile to have filter parameter.
This give us filter capa on file to include.
Should be removed when python 2.7 will be the minimum version

Because we roolback to python 2.6 requirment, we need to ship.

as a corolary, invalid option are no more loaded

This allow displaying to be done without coloration

Signed-off-by: Sebastien Luttringer <sebastien.luttringer@smartjog.com>

is new have now an force option to overwrite existing images

This allow and easy double extracting without needs to delete it before

is new try to instanciate the new created object. But it doesn't pass validation...

tarfile module fail to extract tarball with utf8 filenames when destination is an unicode
string. We need to convert dest as utf-8 string to restore an expected behaviour

=> Image debian-generic v4 loaded
Error: 'ascii' codec can't encode character u'\xe9' in position 27: ordinal not in range(128)
Traceback (most recent call last):
  File "/usr/bin/is", line 482, in <module>
    error(e)
  File "/usr/bin/is", line 480, in <module>
    args.func(p_main, args)
  File "/usr/bin/is", line 242, in c_list
    img, repo = select_image(o, repoman, args.best)
  File "/usr/bin/is", line 64, in select_image
    return repoman.get(image, version, best)
  File "/usr/lib/python2.6/dist-packages/installsystems/repository.py", line 616, in get
    return repo.get(name, version), repo
  File "/usr/lib/python2.6/dist-packages/installsystems/repository.py", line 399, in get
    pkg = PackageImage(path, fileobj=memfile, md5name=True)
  File "/usr/lib/python2.6/dist-packages/installsystems/image.py", line 458, in __init__
    arrow("Author: %s" % self.author, 1)
  File "/usr/lib/python2.6/dist-packages/installsystems/printer.py", line 107, in arrow
    out(" #light##yellow#=>#reset# %s" % message)
  File "/usr/lib/python2.6/dist-packages/installsystems/printer.py", line 55, in out
    fd.write("%s%s" % (message, endl))
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 27: ordinal not in range(128)