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Updates
* General
* Updates to pool defaults in base API.
* Changes to exception handling to better discriminate ConnectionErrors and queries with invalid syntax.
* Various minor bug fixes throughout.
* Carbon Black Cloud
* Bug fixes to query implementation.
* Live Response: Account for sensor queue depth when submitting jobs.
* CB Defense
* Added examples for Dell BIOS verification.
* CB ThreatHunter
* Bug fixes to query implementation.
* Update process and event searches to v2.
* examples/create_feed: Make report optional during feed creation
* examples/process_exporter: Add headers to CSV file writer
* examples/threat_intelligence: Simplify report validation, add severity conversion to percent