for a detailed change log, see: http://svn.apache.org/viewvc?view=rev&revision=685989
ryan
In the effort to clean up confusion around MultiCore usage, we have
renamed the class that handle runtime core administration from
"MultiCoreX" to CoreAdminX. Additionally, the path that the default
MultiCoreRequest expects to hit is: /admin/cores rather then /admin/
multicore -- if you have an existing solr.xml file, you may want to
update the "adminPath" attribute
