ACCUMULO-1488 support floating point operations in combiners

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1491792 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-1505 - Ryan Leary's patch with updates/warning busting



git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1491912 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-1496 merge latest trunk to feature branch; remove unnecessary classpath items from bin/accumulo

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/ACCUMULO-1496@1491946 13f79535-47bb-0310-9956-ffa450edef68