Tracking 1.0.0 release

[fiznool]

• [x] Move package to new name ng-elastic
• [ ] Ensure PR #13 fixes the necessary issues
• [ ] Support Angular Universal #14
• [ ] Support custom setting of height on initialisation if input field is empty #12
• [ ] Test with Angular 2 & 4
• [ ] Test with Ionic 2 & 3
• [ ] Update Angular & Ionic demo repos
• [ ] Update plunker demo
• [ ] Add migration guide from angular2-elastic -> ng-elastic