GEOMESA-172 adding try around decoding simple features
GEOMESA-139 Remove inconsistent naming of temporal and geometry attributes in index

Standardize on using geom/dtg for index attributes:
geomesa_index_geometry   --> geom
geomesa_index_start_time --> dtg
and
geomesa_index_end_time   --> dtg_end_time
GEOMESA-164 adding geomesa pages to geoserver - accumulo stats, hdfs stats, hdfs config, initiate m/r jobs