set as pep8, only minor edits

rigify/__init__.py

rigify/generate.py

rigify/metarig_menu.py

rigify/metarigs/human.py

rigify/rig_ui_template.py

rigify/rigs/basic/copy.py

rigify/rigs/basic/copy_chain.py

rigify/rigs/biped/arm/__init__.py

rigify/rigs/biped/arm/deform.py

rigify/rigs/biped/arm/fk.py

rigify/rigs/biped/arm/ik.py

rigify/rigs/biped/leg/__init__.py

rigify/rigs/biped/leg/deform.py

rigify/rigs/biped/leg/fk.py

rigify/rigs/biped/leg/ik.py

rigify/rigs/finger.py

rigify/rigs/misc/delta.py

rigify/rigs/neck_short.py

rigify/rigs/palm.py

rigify/rigs/spine.py