When public messaging a user, redirect to the activity directory instead of
your profile.

Fixes #3384.

git-svn-id: https://buddypress.svn.wordpress.org/trunk@6977 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Stop a logged-in spammer from being able to access the site.

When an admin marks a live user as a spammer, that user can still surf
around and cause havoc on the site until that person is logged out.

This commit stops live spammers from accessing the site on the next
page load.

Fixes #4814.

git-svn-id: https://buddypress.svn.wordpress.org/trunk@6978 cdf35c40-ae34-48e0-9cc9-0c9da1808c22