"What's new" box missing first name

[r-a-y]

The "What’s new" box doesn’t echo a first name anymore.

I've found that the bp_dtheme_firstname() function (on line 31 in bp-default/functions.php) needs to be changed from:

	$firstname = apply_filters( 'bp_dtheme_firstname', $firstname, $fullname );

to:

	$firstname = apply_filters( 'bp_dtheme_firstname', $fullname[0] );

[ousep]

Just being picky, but it should be "What's new, Name?

[apeatling]

(In [2655]) Fixes #1866 props r-a-y