1. add brand
2. facebook like button, twitter share
3. display correct currency symbole
4. product is always available: user can purchase then we order from customer
5. change cache policy

and not safe to install erp5_immobilisation on nexedi erp5

    **** Warning: considering '0000000000 XXXXX n' as a free entry.

https://codeyarns.com/2014/03/10/free-entry-warning-with-ghostscript-and-imagemagick/

> This warning turns out to be from the Ghostscript program, which is used by
> ImageMagick internally to perform this format conversion. This page explains
> that this error has been fixed in a recent version of Ghostscript. I used a
> newer version of Ubuntu, that is 13.11, that had a newer version of gs and I
> was able to perform the format conversion. It still gave off the warning,
> but the conversion was done.

Image.py tells imagemagick to convert to stdout.
Warnings are also returned via stdout before actual rendering.

convert: not authorized `/tmp/magick-21492bHsMuWjOhmCg' @ error/constitute.c/ReadImage/416.
convert: no images defined `png:-' @ error/convert.c/ConvertImageCommand/3253.

- Remove passing of **kw to query, since it would break Listbox
pagination
- Avoid code duplication
- Fix indentation

See merge request nexedi/erp5!1463

Otherwise, the object could be modified (_p_changed=1) and reindexed for nothing.

See merge request nexedi/erp5!1462

See merge request nexedi/erp5!1483

query SlapOs Master again and again if it created accordingly the Computer
Partitions as anyway scalability tests will start only when instance's state is
reported to SlapOs Master as ready. Thus in this case this check (and requests
to SlapOs Master) is not providing any valuable information at all.

See merge request nexedi/erp5!1482

Increase instance creation time from 10 to 15 minutes as instance creation time includes its frontend creation which can take sometime a longer than usual time.

See merge request nexedi/erp5!1481

In practice, SFTP-based client processes often use a prefix based
filter when retrieving files on the server.

ie: there is one SFTP server between 2 systems, used for different
exchanges. The SFTP client will do something like (found in the wild):
process1(file_list=sftp.list(path, prefix='PROCESS_1'))
process2(file_list=sftp.list(path, prefix='PROCESS_2'))

Our implementation of temporary_file_on_write only sets a suffix,
which doesn't work for the previous SFTP client. So let's add also a
prefix when writing temporary files.

See merge request nexedi/erp5!1480

See merge request nexedi/erp5!1479

See merge request nexedi/erp5!1477

    This allow including more items to be ignored, preventing diffs from pure development.

  Those 2 exceptions are from SlapOS Master codebase, and for now we cannot remove it.

  Rather them complexify the ignore lists, we are hardcoding the values for minimase the ignore list
  to the least entries as possible.

  This is required for multiple sites support and allow us write unit tests and not create a 100 lines mock.

   Whenever used via activity nodes, it is not possible to discover IP of the server via portal absolute url.