i18n, system checks, fixes

What's new

• Added internationalisation
• Added system checks to 9cms

All changes

• Update styles
• Fix transliterate for greek capital intonated vowels.
• Amended tests (coverage 100%)
• Internationalised 9cms
  • Migration, greek locale
  • Added translatable text to python and templates
  • Added verbose translatable names to models
  • Added global settings languages for model choices to allow migrations not to get affected by various
    projects languages setting
  • Restricted language choices in admin layer
• Fix integrity error when creating node as not super user: no default user in node user field
• Admin improvement
• Disable node clone because of Django bug
• Updates
• Allow page type to be cloned.
• Added breadcrumbs template
• Fixed regression with issue #8
• Fix menu active trail, add breadcrumbs template
  • Created small utility function to get url without language.
  • In active trail template tag, remove language part from url if i18n urls are enabled
  • Previously, if language in url, the query would not work well.
  • Fixes issue with not recognising active trail.
• If page type is immediately repeated (same block more than once in one page type), add '+' instead
• Added context to signals by providing the node object in display.
• Fixed regression in #11 and bumped version to 0.5.3.1 for PyPi.