GEOMESA-253 closing shapefile datastores after use in GeneralShapefileIngest
GEOMESA-248 Expand GeoHashUtils's suggested bit range.

When getRecommendedBitsResolutionForPolygon calls getMinimumBoundingGeohash, it passes new ResolutionRange(0, 63, 1) as a parameter allowing any size to pass.
GEOMESA-167 adding ingest rates to geoserver UI
GEOMESA-249 getUniqueGeohashSubstringsInPolygon fails if you don't specify a maximum number of keys less than Int.MaxValue

Updated the unit tests to reproduce this error, and tweaked the routine to compute the expected result.
GEOMESA-247 BoundingBox error viewing coverage in layer preview