Use `mini` as a test runner
Clone and return `process.env`
Initial parser
Parser refactoring
Use the new parser
Introduce `Loader`
Add support for inheritance
Initial api docs
Update docs
Remove unused var
Fix the ci
Respect the current environment on interpolation
Merge branch 'feature/parser'

* feature/parser:
  Respect the current environment on interpolation
  Fix the ci
  Remove unused var
  Update docs
  Initial api docs
  Add support for inheritance
  Introduce `Loader`
  Use the new parser
  Parser refactoring
  Initial parser
  Clone and return `process.env`
  Use `mini` as a test runner