[#15] Handling 'QUOTA_EXCEEDED_ERR' in Chrome

###### Summary of Changes
1. Wherever the code evaluates `error.name === 'QUOTA_EXCEEDED_ERR'`, changed it to also check for `'QuotaExceededError'`.
2. Wherever an event handler is created for `'QUOTA_EXCEEDED_ERR'` it is also created for `'QuotaExceededError'`.
3. Wherever the code triggers a `'QUOTA_EXCEEDED_ERR'` event it also triggers a `'QuotaExceededError'` event. (Not sure if it is harmful for both events to be triggered.)

See also [Issue #15](https://github.com/rpflorence/ember-localstorage-adapter/issues/15).