0.5.25: Keep mixin call position trace

Fix phug-php/phug#40

Keep mixin call position trace

0.5.24: Allow extension redundancy

Fix path checking to allow extension redundancy in all cases

0.5.23: Allow extension redundancy

Allow extension redundancy

0.5.22: Add allow_composite_extensions option to handle .x.y extensions

Add allow_composite_extensions option to handle .x.y extensions

0.5.21: Use the new dedicated AnonymousBlockElement class

Use the new dedicated AnonymousBlockElement class

0.5.20: Add reset method

Add reset method

0.5.19: Propagate mixins declarations to the layout

Propagate mixins declarations to the layout

0.5.18: Faster assignment compilation

Faster assignment compilation

0.5.17: Fix undefined variable in condition statement

Fix undefined variable in condition statement

0.5.16: Optimize initialization

Remove mixins storage as they are now handled in the formatter