Conflicts:
	playbooks/group_vars/all

initial AUTHORS file

setting auto-scaling min/max to 2

Jbau/fix/new requirements files

Parameterizing edx git repository location

* Creates global variable $platform_code_dir to store
  /opt/wwc/edx-platform, to replace the semihardcoded /opt/wwc/mitx that
  we had before.
* Plugs $platform_code_dir in a lot of different places
* Templatize sef's update script hack

Until we support autoscaling we should keep min/max
the same.  We might want to make it 1/1.

Conflicts:
	playbooks/roles/common/tasks/edx_logging_base.yml
	playbooks/roles/common/tasks/main.yml

Jarv/cleanup lms and examples

Feature/jrbl/tagging update install

* update tasks are meant to be the fast ones and the ones we want to be
  sure to always do (directory creations, permissions, etc.)
* install tasks are all the really slow things, like the git repo clone
  and package installations
* Every task can by run by --tags=install,update - which is the same as
  having no tags at all.

Conflicts:

	playbooks/roles/lms/tasks/main.yml

Jbau upstart restart handler

Jbau/lms preview