ACCUMULO-970 Update CHANGES for release candidate tagging

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1484331 13f79535-47bb-0310-9956-ffa450edef68
[maven-release-plugin] prepare release 1.5.0-RC4

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1484337 13f79535-47bb-0310-9956-ffa450edef68
[maven-release-plugin] prepare for next development iteration

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1484339 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-1441 added rfiles to apache-rat-plugin excludes

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1484580 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-970 update merge info to trunk from 1.5.0-RC4 changes

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1484635 13f79535-47bb-0310-9956-ffa450edef68