GEOMESA-353 Allow KNN to search using lower resolution GeoHashes

Increase range of allowable precisions in GeoHashSpiral.
GEOMESA-342 - Updated geomesa-tools log4j properties to stop making .log files
GEOMESA-341 Confirm that export-to-Shapefile works as expected

Shapefiles were being written without geometry information. This is because Geotools requires that
the geometry attribute be named the_geom. The geometry attribute now gets renamed for shapefile export only.
GEOMESA-333 Exclude 6 commons math3 files from our distribution
GEOMESA-350 Enable Bloom-filters for RowID for the records table
Merge branch 'accumulo1.5.x/1.x' into fcr_export_transform

Conflicts:
	geomesa-tools/src/main/scala/org/locationtech/geomesa/tools/Export.scala
Address code review comments.