Allow for custom login redirect URL's in bp_core_login_redirect().

git-svn-id: https://buddypress.svn.wordpress.org/trunk@7416 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Add placeholder text for xprofile field group title field.

This will help with accessibility and usability.

Fixes #5069

Props imath

git-svn-id: https://buddypress.svn.wordpress.org/trunk@7417 cdf35c40-ae34-48e0-9cc9-0c9da1808c22