v2.0.0

Migration from v1.0 to v2.0:

ng update apollo-angular

List of breaking changes and a migration strategy available on our "Migration Guide".

Changes:

• Support Apollo Client 3.0 (use @apollo/client/core)
• Http, HttpBatch and Headers links are now part of apollo-angular: apollo-angular/http and apollo-angular/headers
• Re-export gql of graphql-tag (import { gql } from 'apollo-angular')
• Add flushData method to TestingOperation (PR #1474 by @fetis)
• Remove apollo-angular-boost and apollo-angular-cache-ngrx