Item12481: replace core copy mechanism with CopyContrib

also:
- removed unused attach.js code, long superseded by TopicInteractionPlugin
- rename tags form now requires a POST
- color improvements for customato design
- compatibility fixes for old SolrPlugin
- improve shake effect in login dialog on wrong password



git-svn-id: http://svn.foswiki.org/trunk/NatSkin@17758 0b4bb1d4-4e5a-0410-9cc4-b2b747904278