0.4.0

Roughly six months after announcing the first public version of Askama, 0.4.0 feels like a large update.

There are some breaking changes compared to the 0.3.0 series:

• &, < and > are replaced with HTML character entities by default (see #23)
• Run-time errors are now returned via custom Error and Result types

Other noteworthy new features include:

• Optional integrations for Rocket and Iron (see examples for Rocket and Iron)
• Support for defining variables, user-defined filters, includes and macros
• Inheriting templates no longer have to use _parent to refer to fields from the parent context
• Template implementations now automatically implement Display
• Better robustness and more explicit error handling through panics at compile time
• Much faster compilation in some edge cases with nested binary operators

Special thanks to those who have contributed to this release, in particular @anowell and @defyrlt.

Please post your feedback or questions as an issue or join the chat!