adding ver 2.8
Updated to 2.8.2 from http://plugins.svn.wordpress.org/enable-media-replace/tags/2.8.2/
Merge branch '2.8.2'
add 2.9 from http://plugins.svn.wordpress.org/enable-media-replace/trunk/
add 2.9.2 from http://plugins.svn.wordpress.org/enable-media-replace/trunk/