* 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

* sends logs to /mnt/logs/nginx instead of /var/log. Note that on fresh
  server startup, nginx will still log to /var/log until it reads its
  configuration.
* Installs logrotate configuration for freshly moved nginx logs
* Some directory and file permissions fixups
* Improved order of operations on nginx installation/bringup

* Bugfix to rsyslog configuration; configuration file had missing
  extension
* Logrotate recipes for edx log files
* Files reorganized, renamed

* Touches directories and files into existence expected during setup for
  LMS and CMS
* Configures rsyslog to catch local0 and local1 from edx, and route into
  the appropriately named files in the appropriately named
  subdirectories
* Permissions updates to ensure rsyslog can write everywhere it's
  supposed to
* Restarts rsyslog after reconfiguration is complete

Until we get proper software updates working we need a script we can run
to orchestrate installs -- checkouts, collectstatic, restarts.  Tagged
with the "update" tag.  Just puts the file out there for now, doesn't
actually do any updates, that should be done with something like this:
    ansible GROUPNAME -i ./ec2.py -c ssh -s -a edx-update.sh

* Rename auth_config and env_config to be specific to LMS and CMS
* Minor CMS configuration cleanups elsewhere

* Move sudo:True out of each task and into the playbook, since it's a
  playbook-level variable
* Removal of a couple debian package installs from common that are also
  being installed in the role where they're needed
* Re-correction of /etc/git-identity permissions
* Other cleanups (whitespace issues, etc.)

* Removes HTTP basic auth

* Enable npm role
* Minor edits to debian dependency list
* Change treatment of a few files and directories

* Needs more work, but seems to have many of the basics.

instances is a bit easier.
Also subsumes @sefk's  https://github.com/edx/configuration/pull/42

This rolls the ec2 elb management script into a module.
Now if an ELB is added or removed "changed" will return True/False
so you can tell if any action was taken based on the coloring of
the response (yellow/green).

* Use the 'adm' group for permissioning assets needed during LMS
  initialization, because ubuntu doesn't have the edx user until it logs
  out and logs back in.

where it can take a {{ service_variant }} param

* Add ubuntu to edx, restrict git identity access to edx group members