Fixing tests for derby/h2/hsqldb, adding timezone and locale configuration

All tests for simple and column strategy on memory open source databases should succeed now (derby, h2, hsqldb).

This commit updates also h2 and hsqldb versions.

Timezone and locale settings have been added, also a test for the $now parameter. GMT formatting of JDBC time value gets been replaced by timezone-sensitive formatting.

It is not tested now how locale settings will influence calender settings, but the method Calendar.getInstance(timezone, locale) is now used for JDBC set/get of time values.