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* Improved test-suite
* Execution blocks are now replaced with whatever is sent to stdout
* `aina doc` now respects the `--interval` argument
* `aina doc --interval` is fixed and now only re-renders templates which have changed
* `aina doc` with `--recursive` now processes files in a top-down manner
* Lots of bug fixes
* Improved documentation
* values of expressions are now automatically coerced into strings
* Drop support for Python 3.4 and add support for Python 3.7
* Improved logging