#ACCUMULO-1172 increased default metadata table split threshold

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1456983 13f79535-47bb-0310-9956-ffa450edef68
#ACCUMULO-1172 increased default metadata table split threshold

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1456984 13f79535-47bb-0310-9956-ffa450edef68