WebJournal: various improvements and demo journal

• Renamed elements/widgets. bfe_ObjectLanguage.py is being replaced by bfe_webjournal_info.py. Old bfe_ObjectLanguage.py is moved to CERN-specific repository. bfe_bulletin.py is split into bfe_webjournal_article_body.py, bfe_webjournal_article_title.py, bfe_webjournal_article_admin_links.py.

• Atlantis Times journal: demo records, templates and configuration.

• Improved language support.

• More generic issue handling: does not restrict to weekly-based issues.

• Hide non-released issues.

• Infrastructure to update articles tagged as "draft" (offline) when releasing an issue.

• Improved caching and speed.

• Added WebJournal documentation.

• Other bug fixes, new features, code cleaning, refactoring and commenting, including:
  • New configuration variables: issues_per_year, issue_grouping, hide_unreleased_issues, first_issue, alert_recipients, languages, submission and draft_keyword.
  • Send email using mailutils.py.
  • Filter issue articles using intbitset operations instead of building search query.
  • "Legacy" URLs only enabled if CFG_CERN_SITE.
  • Style of article titles (in menus) can be modified based on 595__a field and knowledge base.
  • Nice journal name displayed when displaying error dialog.
  • parse_journal_url() cleans archive_year.
  • parse_journal_url() includes archive_search parameter.
  • Fixed link to admin interface after issue has been released.
  • get_issue_number_display() don't fail if requesting unreleased issue.
  • get_xml_from_config() accepts "deeper" node paths.
  • Wash journal names to make them case insensitive (for main URLs).
  • Journal config files are now named %(journal_name)s-config.xml.
  • Do not accept non-digit issue numbers in URLs.
  • Do not raise error in admin interface when no journal exist.
  • Keep HTML links in articles headers when displaying journal index page.
  • Respect ordering of journal categories as defined in the journal XML config file (when displaying navigation menu + "What's new" widget).
  • "What's new" widget display articles in the order defined by the article metadata.
  • Improved detection and display of images and headers when displaying journal index page.
  • New CSS class for categories in "What's new" widget.
  • Images on journal index page link to corresponding article.
  • Improved journal cache cleaning.
  • Fixed crash when trying to release a new issue without selecting an issue.
  • New 'identifier_element' and 'identifier_field' config tags for improved access to edit articles.
  • Improved backward compatibility with "CERN Bulletin" journal.
  • Filter out attached files which are not images when trying to extract images from articles.
  • Updated documentation.
  • RSS icon uses absolute URL when possible.
  • Improved HTML markup.
  • Do not cache index page when issue is not released.
  • Display HTML newsletter preview before sending alert.
  • Other minor improvements.