v0.4.0

Announcements:

• The vote to raise minimum PHP requirement to 5.4.0 has passed! (3 👍 vs 0 👎 )
• The vote to remove deprecated classmap.php file has passed! (2 👍 vs 0 👎 )

Breaking Changes:

• Parser: remove deprecated show() and to() methods
• Parser, Compiler: convert stdClass to Block, Node, and OutputBlock abstractions
• Compiler: 2nd argument passed to user registered functions now receive kwargs instead of a Compiler instance

Enhancements:

• New control directives: @break, @continue, and naked @return
• New operator: <=> (spaceship) operator

Compatibility Fixes:

• Compiler: index() - coerce first argument to list
• Compiler/Parser: fix @media nested in mixin
• Compiler: output literal string instead of division-by-zero exception
• Compiler: str-slice() - handle negative index
• Compiler: pass kwargs to built-ins and user registered functions