Except not working with for_each and include_sub_dirs

[TheSgrash]

Hi folks,
testing aviator behaviour and going through the code I noticed that the except piece isn't into account when include_sub_dirs is present. Example:

- base: base.yml
  for_each:
    in: configs
    include_sub_dirs: true
    regexp: ".*.yml"
    except: [test.yml]
  to_dir: ++tmp/base_output/++

This can be solved with #46
@herrjulz can you review pls?

[TheSgrash]

#46 has been merged... can we have a new release pls @herrjulz ?