GEOMESA-65 IngestFeatureCommand does not properly close FeatureWriter leading to truncated ingest

Added a CloseableFeatureWriter closure which is threaded through
the computation using Scalding's `using` facility.
GEOMESA-62 Adding ability to modify and remove features from the AccumuloFeatureStore
GEOMESA-62 Delete old keys when the spatio-temporal index changes
GEOMESA-62 Ensuring feature IDs remain unchanged with spatiotemporal index update
GEOMESA-62 fixing cql filter in unit test
Merge branch 'geomesa-62-wip' of https://github.com/ccri/geomesa into geomesa-62-wip