Switched README example to javascript

Also removed unnecessary `Meteor.startup` block
Merge pull request #2 from tmeasday/patch-1

Switched README example to javascript
Update README.md
Update README.md
Allow fields to have arrays of associated items.
First aborted attempt to get tests working..
Merge pull request #3 from tmeasday/allow-arrays

Allow fields to have arrays of associated items.
Update README.md
version bump
Added some tests + fixed problem where ready was called twice (and early).
Merge pull request #5 from tmeasday/test

Fix multiple ready() call
Fix issue #4

Fix issue #4 where it fails if no mappings are set
version bump
Actually stop subscriptions (!!)