SOLR-5168: test improvements and @Ignore still broken test

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1515521 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5171: SOLR Admin gui works in IE9, breaks in IE10.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1515524 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5174: Admin UI - Query View doesn't highlight (json) Result if it contains HTML Tags

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1515527 13f79535-47bb-0310-9956-ffa450edef68