Convert dates to JVM timezone before storing in H2
Change QueryAssertions to make it easier to add a breakpoint
Remove test query comparisons with DATE literals

Not all connectors support dates and instead use VARCHAR.  This means that a test
query can not assume the column is a DATE.
Bump airlift and tpch versions to non snapshot versions
[maven-release-plugin] prepare release 0.87
[maven-release-plugin] prepare for next development iteration