Motivation for changes:

Discovered that site entries could have empty fields, usually ones added from very early announcements or teasers. That would result in exceptions due to parsing errors since some fields were taken for granted.

Detailed changes:

• Replaced most direct references to dict keys with dict().get()
• Convert to string before performing case operations to avoid NoneType exceptions
• Changed al_links output:
  • From Dicts inside a List: [{'site': '*site_name*', 'url': '*site_url*'}, ... ]
  • To single Dict: {'*site_name*': '*site_url*', ... }
• Alphabetize Entry() fields to improve code readability