title: Change the content of the admin bar in buddypress
body: <p>I need to change the content of admin bar in the buddypress default template. It has options like My Account, Dashboard, Notifications. First, I want to delete the dashboard option. Next, I want to show different options for different user types in the 'my account' option. e.g. I have two user types- student and teacher. Now, I want a 'friends' option to show for the student, but not for the teacher, in the 'my account' section.</p>