8.1.0: XP 12 compatibility

• Made compatible with XP 12 - @thekid
• Added PHP 8.4 to the test matrix - @thekid

8.0.1: Fix for list items with `|`

• Added PHP 8.4 to the test matrix - @thekid
• Fixed Call to a member function length() on string errors for lists
  with an item containing a | sign
  (@thekid)

8.0.0: Explicit line breaks

• Heads up: This release refactors the Emitter interface to an
  abstract base class with empty implementations. This will prevent
  BC breaks in the future should new node kinds need to be added
  (@thekid)
• Merged PR #20: Add support for line breaks, via <br> and via two
  (or more) spaces at the end of the line.
  (@thekid)

7.1.2: Braced links fix

• Fixed auto-linking inside braces - @thekid

7.1.1: Auto-linking fix

• Fixed auto-linking inside lists - @thekid

7.1.0: Code inside lists and blockquotes

• Fixed code blocks inside a block quote - @thekid
• Removed setTokens() and setHandlers() from contexts - @thekid
• Merged PR #19: Fix formatting inside lists - @thekid

7.0.0: Code blocks compliance

• Implemented xp-framework/rfc#341: Drop support for XP 9 and lower
  (@thekid)
• Merged PR #14: Spec compliance testing. Not run in the test suite yet!
  (@thekid)
• Heads up: No longer use the lang attribute on <code>. Instead,
  use class="language-..." in compliance with spec.
  (@thekid)
• Merged PR #17: Emit code blocks as <code> wrapped in <pre>. Solves
  problem described in issue #16.
  (@thekid)

6.1.0: Fenced code blocks with ~

• Merged PR #18: Add support for fenced code blocks enclosed with ~~~
  (@thekid)
• Merged PR #15: Migrate to new testing library - @thekid

6.0.2: PHP 8.2 compatibility

• Fixed "Creation of dynamic property" warnings in PHP 8.2 - @thekid

6.0.1: PHP 8.1, XP 11 compatibility

• Made compatible with PHP 8.1 using #[ReturnTypeWillChange] attributes,
  preventing null values for preg_match() and using ENT_COMPAT for
  htmlspecialchars() flags
  (@thekid)