Merge pull request #108 from edx/dev

Fix strange sandbox xqueue issue
Merge pull request #109 from edx/dev

Dev
Merge pull request #110 from edx/dev

Add in permissions system
add ability to override timezone
clarify LICENSE

- make clear the viral nature does not extend to other network services
- fixed title centering
Merge pull request #112 from edx/jtauber/license-change

clarify LICENSE
Merge pull request #111 from edx/jbau/parameterize-timezone

add ability to override timezone
Merge remote-tracking branch 'origin/master' into dev
Initial documentation