title: DbSet doesn't have a Find method in EF7
body: <p>I am trying to create a generic repository to access my database. In EF6 I was able to do that in order to get a specific entity:</p>
  
  <pre><code>protected IDbSet&lt;T&gt; dbset;
  
  public T Get(object id)
  {
      return this.dbset.Find(id);
  }
  </code></pre>
  
  <p>DbSet in EF7 is missing a Find method. Is there a way to implement the above piece of code?</p>