SOLR-5866: UpdateShardHandler needs to use the system default scheme registry to properly handle https via javax.net.ssl.* properties

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_7@1578743 13f79535-47bb-0310-9956-ffa450edef68
version constants: 4.7(.0) -> 4.7.1

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_7@1578745 13f79535-47bb-0310-9956-ffa450edef68