adding iam role association to launch configurations
adding simple ssh config generater
adding friendly names
fixing handling of ssh keys
Merge pull request #178 from edx/e0d/fix-keys

fixing handling of ssh keys
forum role cleanup

* consistent jinja variable syntax
* comment blocks on the tasks/main.yml files
* some syntax errors, variable name issues
* indenting, breaking up long lines
* various bug fixes
adding edx-sandbox
fixing mixxing forum_mongo_database var definition
typo in var name
api_id -> api_key
changing edxapp defaults for comments service
resolving merge conflicts
fixing typo
Fixing upstart script to source env.
Merge pull request #185 from edx/e0d/upstart-source-env

Fixing upstart script to source env.
Merge remote-tracking branch 'origin/e0d/upstart-source-env' into jarv/forum-cleanup
Merge pull request #180 from edx/jarv/forum-cleanup

forum role cleanup
removing commented out roles in the sandbox
Merge pull request #186 from edx/jarv/forum-cleanup

removing commented out roles in the sandbox play
updating the master edx_sandbox play