Release 0.3

• Security fix: faked urls are treated as invalid. See this page for more details.
• Fixes:
  • allow of empty video field.
  • requirements in setup.py
• Added simplier way to embed video in one-line template tag:

    {{ 'http://www.youtube.com/watch?v=guXyvo2FfLs'|embed:'large' }}

• backend variable in video template tag. Usage:

    {% video item.video as my_video %}
        Backend: {{ my_video.backend }}
    {% endvideo %}