Merge pull request #8 from mcculls/master

Explicitly bind AvailabilityManager as singleton in KeyValueStoreJdbiH2Module
[maven-release-plugin] prepare release kazuki-db-0.0.20
[maven-release-plugin] prepare for next development iteration
implementation of lifecycle-aware connection pool with re-instantiation
ensure storage test cases exercise lifecycle start/stop
[maven-release-plugin] prepare release kazuki-db-0.0.21
[maven-release-plugin] prepare for next development iteration
fixup tests, implement reverse ordering for shutdown-type lifecycle events
[maven-release-plugin] prepare release kazuki-db-0.0.22
[maven-release-plugin] prepare for next development iteration
update h2 dependency to .175
try to avoid close() in finalize method if at all possible
[maven-release-plugin] prepare release kazuki-db-0.0.23
[maven-release-plugin] prepare for next development iteration
candidate fix for 'connection already closed' issue - hoist schema retrieval out of transaction handlers
[maven-release-plugin] prepare release kazuki-db-0.0.24
[maven-release-plugin] prepare for next development iteration
prepare branch for maintenance releases
start 0.2.x development series