Returning GeoMesa version to 2.1.0-SNAPSHOT.
Returning GeoMesa version to 2.1.0-SNAPSHOT.

Signed-off-by: Jim Hughes <83604274d3a3e0dfcd82a32294463cf1dbc0eae3@ccri.com>

jahhulbert-ccri/geomesa-nifi,geomesa/geomesa-nifi,jahhulbert-ccri/geomesa-nifi