Multiple archive shortcode updates.

git-svn-id: https://plugins.svn.wordpress.org/mtphr-members/trunk@791853 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added full content option for archive excerpt

git-svn-id: https://plugins.svn.wordpress.org/mtphr-members/trunk@791959 b8457f37-d9ea-0310-8a92-e5e31aec5664