GEOMESA-41 Make scans log a warning when a index and data key are out of sync

Log a warning during scans when index and data keys are not
aligned.
GEOMESA-42 Upgrade to Hadoop 2.2.0, Accumulo 1.5.0, and Scala 2.10.3

Upgraded versions and adjusted code accordingly.  Added an
iterator initialization step that properly configures the
classloader to load java SPI services.
GEOMESA-43 Add a consistency checking iterator