SOLR-4264: Missing Error-Screen on UI's Cloud-Page

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1429254 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4261: Percentage Infos on Dashboard have a fixed width

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1429256 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4045: SOLR admin page returns HTTP 404 on core names containing a '.' (dot)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1429259 13f79535-47bb-0310-9956-ffa450edef68