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
GEOMESA-338,266 Scalding Ingest and Date Time fix

* fixed date time cut issue
* added scalding map reduce ingest for csv/tsv data
* allow for ingest without datetime column/information
* skip header is no longer supported
* added java default time zone flag to ingest command in bash script
* improved error logging messages
* fixed milliseconds epoch
GEOMESA-349, 324 Create TAR-ball for distributing GeoMesa & GeoMesa tools' script should be filtered resource

Added a new module, geomesa-assemble, to take care of assembling GeoMesa into a tarball.
Also added symlinks in an Ant job for each library to handle different versions for the future.
Merge branch 'accumulo1.5.x/1.x' into dcm
Progress