Refactor validators.
Remove test runner script.
Remove pre-0.7.0 relational methods.
Add support for multiple storage layers. Closes #11.
Improve plugin documentation. Closes #4.
Add coverage script to package.json
Support promises. Closes #8.
Remove validators.
Remove .removeAll()
Use [method].use(fn) syntax for storage plugins.
Add store API through Model.use()
Bump version to '0.7.0'.
Merge branch 'master' of github.com:alexmingoia/mio

Conflicts:
	bower.json
	component.json
	lib/validators.js
	package.json