update readme, add contributing.md
Merge branch 'pre-release'
bump v0.3.2
update contributing.md [skip ci]
fix - append query params to url for indexing requests in the store
bump v0.3.3
jshint quick fix
Add nested models to a "self" collection when adding a "current" collection to the store.

See #49
update .filter() to accept a regular expression string
Merge pull request #55 from kiva/store-self-collection

Add nested models to a "self" collection
fix - store.get() was failing when passed a raw entity

Also fixes a bug in the unit test that didn't catch this.