Add a new interface to handle extensions
Move around an item in the CHANGELOG
Add some verifications when registering extensions, add a builted-in one
Change how filters are loaded
Converts and filters Filters into the Extension format
Move some instructions around on the filter caller
Fixes some amateur level mistakes (-.-')
Fix option needs_environment treatment
Fix bugged coverage, and rename FiltersTest
Fixes mistypes and enhance protect filter
Update CHANGELOG
Make lowercase the core extension's name
Update Docs
Change version in the conf.py file
Add a way to freeze extensions when parsing, and get a specific extension
Update documentation
Remove a useless built-in filter