Improve inline docs in bp-forums component. See #5022

git-svn-id: https://buddypress.svn.wordpress.org/trunk@7554 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Improve inline docs in bp-blogs

git-svn-id: https://buddypress.svn.wordpress.org/trunk@7555 cdf35c40-ae34-48e0-9cc9-0c9da1808c22