1.3.0
make sure indexed value is stringified for hashing
1.3.1
added unit tests, fixed keyname and multiple children
1.3.2
tests
remove old indexes and test for it, fixed key generation
1.3.3
limit 1 shouldn't return an array, even on error
1.3.4
added tests, prevent duplicate index keys
1.3.5
fixed index key deleting logic
1.3.6
added onSave and new version of VeryModel for differences and changes