Version 0.3.0 comes with the much anticipated auto escaping!

Autoescaping, more escaping strategies, autoescape tag, and raw filter.

Extensions can now provide node visitors to traverse the AST.

Macros can have default argument values.

Implemented dynamic inheritance.

Renamed ‘message’ function to 'i18n’

Fixed issue where compilation failed in JBoss.

Code cleanup and misc small bugs