v2.0.4: 2.0.4

• code refactor
• admin settings page re-design
• new readme and contributing docs

v2.0.3: = 2.0.3 =

• code refactor
• unit testing
• admin settings page re-design
• new external-link-new-window class for external links (whilst still supporting legacy class)
• changing new window icon to CSS encoded for better performance