Make SherlockActivity's Home button act as back button

SherlockHomeAsBackButton

@Override
public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	
	getSupportActionBar().setDisplayHomeAsUpEnabled(true);
	getSupportActionBar().setHomeButtonEnabled(true);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
	switch (item.getItemId()) {
	case android.R.id.home:
		onBackPressed();
		break;
	}
	return super.onOptionsItemSelected(item);
}