State that XQuery uses trees, not tables.
State that XQuery uses trees, not tables.

Change-Id: If35edae8ee6bc8a64cd37c57b9970c02629f9c1e

apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,flabbergast-config/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast