kiji-schema: 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
commit: https://github.com/kijiproject/kiji-schema/commit/ee36e4ddf5ab029dea1abf90cd114283ee0bd330
kiji-model-repository: KIJIREPO-40. Adds cmdline tool help descriptions.

issue: https://jira.kiji.org/browse/KIJIREPO-40
review: https://review.kiji.org/r/1649
commit: https://github.com/kijiproject/kiji-model-repository/commit/047e89355439af0b2cc673e0fe8f6ccc0ca6958c
kiji-schema: SCHEMA-657. Move DebugResourceTracker to util package

issue: https://jira.kiji.org/browse/SCHEMA-657
review: https://review.kiji.org/r/1650
commit: https://github.com/kijiproject/kiji-schema/commit/92df98855d730241f8ccf90e159bea036ce2c653
kiji-schema: SCHEMA-659. Avro parser handle name-spaces properly

 - Properly define and implement name-spaces:
   - The following are absolute Avro names: ".SimpleName", "ns.SimpleName" and ".ns.SimpleName"
   - The name "SimpleName" is resolved against a current default name-space.

issue: https://jira.kiji.org/browse/SCHEMA-659
review: https://review.kiji.org/r/1651
commit: https://github.com/kijiproject/kiji-schema/commit/3ce3a624fa1c32f1ce222bdd7aa97601e90cea3b
kiji-schema-shell: DDLSHELL-66. Update following SCHEMA-659

issue: https://jira.kiji.org/browse/DDLSHELL-66
review: https://review.kiji.org/r/1654
commit: https://github.com/kijiproject/kiji-schema-shell/commit/24d53bcff29232d27d3af57711a11f9c4d9ef890