Removed sleeps from IngestManager.stoAll(), added more cancel checks
Experimented with ingest job cancellation improvements
Merge remote-tracking branch 'upstream/develop' into parallel_file_ingest
Thread pool shutdown variation
Fixed ingest job cancellation
Fixed bug in DataSourceIngestPipeline
Fixed bug in FileIngestPipeline
Merge pull request #600 from rcordovano/parallel_file_ingest

Parallel file ingest
Merge remote-tracking branch 'upstream/develop' into mt-search2