The way boot options for linux and config params for grub
were configured gave rise to quite a few bugs.
The configuration has now been abstracted so that
options can be added without interfering with the work
of other tasks (no more sed_i!)
Up until now I didn't see the point of using spaces for indentation.
However, the previous commit (a18bec3) was quite eye opening.
Given that python is an indentation aware language, the amount of
mistakes that went unnoticed because tabs and spaces were used
at the same time (tabs for indentation and spaces for alignment)
were unacceptable.
E101,W191 have been re-enable in the tox flake8 checker and
the documentation has been modified accordingly.
The following files have been left as-is:
* bootstrapvz/common/assets/extlinux/extlinux.conf
* bootstrapvz/common/assets/init.d/expand-root
* bootstrapvz/common/assets/init.d/generate-ssh-hostkeys
* bootstrapvz/common/assets/init.d/squeeze/generate-ssh-hostkeys
* bootstrapvz/plugins/docker_daemon/assets/init.d/docker
* bootstrapvz/providers/ec2/assets/bin/growpart
* bootstrapvz/providers/ec2/assets/grub.d/40_custom
* bootstrapvz/providers/ec2/assets/init.d/ec2-get-credentials
* bootstrapvz/providers/ec2/assets/init.d/ec2-run-user-data
* docs/_static/taskoverview.coffee
* docs/_static/taskoverview.less
* tests/unit/subprocess.sh
