* Remove the mutableValue prop in the Select component.
* Add back mutable value when Vue Select has to manage its own value.
* Remove mutableOptions, valueAsAarray. Update webpack minifer to use Terser.
* Fix tabbing
* Fix bug with showClearButton
* Fix tests.
* Call clearSelection when possible
* Update dev sandbox to have all three options for setting value.
* Update dev sandbox to display current value
* Remove unused karma test setup.
* Revert onInput name change.
* Use coveralls
* Change this.internalValue to this.$data._value.
* Remove onInput prop and replace with internal method, updateValue.
* Update tests.
* Rename optionObjectComparator to optionComparator.