ACCUMULO-1413 applied v2 patch, which renames the parent POM and assemble module artifactIds, to provide artifacts with more suitable names (getting rid of the unnecessary zip version of the source release assembly in the process), and updating documentation to reflect tarball filenames

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1483421 13f79535-47bb-0310-9956-ffa450edef68