* option to roll the delta of the arm rig.
* fix to copy metarig type
* renamed EditBone.align() --> EditBone.align_roll()
* Added EditBone.align_orientation(other)
* Added bone.vector: same as (bone.tail - bone.head)
On ubuntu/debian install these tools...
sudo apt-get install pylint pyflakes python-setuptools python-pip
sudo pip install pep8
then run from blenders source dir...
python release/test/pep8.py
This searches for the comments "# <pep8 compliant>" and "# <pep8-80 compliant>", running the checking tools on these scripts only.
* some minor pep8 corrections too.
