avoid homepage design issues

replaced strawberry with shorter named fruit (lime), fixes #454
Merge pull request #455 from DreadKnight/master

avoid homepage design issues
Issue #465: Upgrade to Django 1.5.8 and jsonfield 0.9.19
Issue #285: Fix for next/previous job links
Fixing blog date display to be ISO 8601
Adding signed in user drop down menu
User membership edit should raise 404

  If someone hand crafted a URL to /users/membership/edit/ and they
  were not a PSF member it failed with 500, fixed to return 404
  properly.
Homepage Download box autogeneration

    - Homepage box now auto generates content like supernav
    - Various PEP8 fixes
Fixing broken tests

    - Bad Frank did not run tests again before pushing.  He has been
    properly flogged
Merge pull request #468 from python/upgrade_django_1_5_8

Issue #465: Upgrade to Django 1.5.8 and jsonfield 0.9.19
Merge pull request #469 from python/fix_prev_next_job_listings

Issue #285: Fix for next/previous job links
Merge branch 'master' into release