Fixes #563
Merge pull request #566 from scraperwiki/fix-bug-563

Actually fixes #563 with tests
Adds accountLevel (ugly) in the nav
Show free trial time left
Make free trial warning red when 10 days or less left
Better wording for free trial text
Make default plan free-trial, add plan expires
use the new unit test to correct getPlanDaysLeft
Bump the version of sinon that we use
Filled in the unit tests for plan expires
Log some warnings when plan doesn't exist
Add free-trial plan, and display days left
Change copy from community to free trial
Fix capitalisation of Free Trial and Data Scientist
Fix integration test
Redirect /signup/community to /signup/freetrial