add filtering of message to bp_group_status_message()

[sboisvert]

This small patch adds the ability to filter the message that is displayed by bp_group_status_message()

echo apply_filters('bp_group_status_message',$message,$group,$status,$bp_group_has_requested_membership, $is_user_logged_in);

[sboisvert]

C:\Users\sboisvert\Documents\NuSphere PhpED\Projects\wordpressPEER1\wp-content\

[DJPaul]

I added some phpdoc and tweaked your patch a little, sboisvert -- the filter didn't need all those arguments passed to it, as the callback function could just get those itself.

[djpaul]

(In [5673]) Add filter to bp_group_statusmessage. Fixes #3975, props sboisvert for initial patch.

[sboisvert]

Thank you, I'll try to keep that methodology in mind for next time.