Fixed import structure.

__init__.py

config/nifty_config.py

lm/__init__.py

setup.py

spaces/__init__.py

spaces/gl_space/__init__.py

spaces/gl_space/gl_space.py

spaces/gl_space/gl_space_paradict.py

spaces/hp_space/__init__.py

spaces/hp_space/hp_space.py

spaces/hp_space/hp_space_paradict.py

spaces/lm_space/__init__.py

spaces/lm_space/lm_space.py

spaces/lm_space/lm_space_paradict.py

spaces/power_space/__init__.py

spaces/power_space/power_index_factory.py

spaces/power_space/power_indices.py

spaces/power_space/power_space.py

spaces/power_space/power_space_paradict.py

spaces/rg_space/__init__.py