SCHEMA-656. Add a shutdown hook to check for unrelease resources

issue: https://jira.kiji.org/browse/SCHEMA-656
review: https://review.kiji.org/r/1648
SCHEMA-657. Move DebugResourceTracker to util package

issue: https://jira.kiji.org/browse/SCHEMA-657
review: https://review.kiji.org/r/1650
Bridge updates.
Adds experimental support for non-CDH5 HBase 96.
Fixes copyright year.
Updates to CDH5b2. Adds factory methods for ByteArrayComparable filters to bridge.