Added inserting content after the specified node

Just added "after()" equivalent with YUI node's "insert( content,
'after')"
Added "replaceWith" and "before" insertions of content

jQuery's "replaceWith", "before" equivalent with YUI's ".insert(
content, "replace" )" and ".insert( content, "before" );
Merge branch 'master' of github.com:homeslicesolutions/jquery-yui3-rosetta-stone