[1.0.6] Accessibility and new features release

Added new syntax:

• `code` for code blocks!
• ~~not code~~ for strikethrough!

Added new features:

• Hover over the time block to see how much time has passed since the post was made

• User's profile picture now have a alt attribute
• Atom feed now have a charset=utf-8 in it's response header
• Removed invalid HTML values like colspan="grow" from <td> tags
• Removed some unnecessary trailing slashes from here and there
• Added Open Graph meta tags for article:published_time, article:modified_time, article:author
• Forum's title is now more dynamic:
  • On the main page it will display the site name that you specify in the settings
  • On the forum page it will display the site name + forum title
  • On the board page it will display the site name + board title
  • On the topic page it will display the site name + topic title
• Made code a little bit more safe - added more error handling
• Fixed Atom feed so it's now Atom 1.0 feed compatible

Full Changelog: 1.0.5...1.0.6