v2.4.0

• Add arrays support for iterable test (#254)
• Bugfix for variable which was accessible outside a loop (#250)
• Syntax builder return itself for method chaining (#259)
• Macros are called too often if included multiple times
• Fix potential null pointer exception in PebbleException (#243)
• Fix for accessing map via primitive (#196)
• Output filename and line number of non-existent macro
• Fix for null pointer and index out of bounds exceptions when invalid or no endif/endfor tags are used in template (#266)
• Add DynamicAttributeProvider interface. When implemented by an object, tells the expression parser that this object is able to provide attributes dynamically, given their names and the potential arguments(#230)
• Add rendering of single blocks, similar to the Twig renderBlock() method.