Changes from 739790 to 740039:
------------------------------------------------------------------------
r739830 | kahatlen | 2009-02-01 21:44:06 +0100 (Sun, 01 Feb 2009) | 7 lines

DERBY-4042: org.apache.derby.impl.load.Import needs to escape single quotes

Made sure that the export and import procedures properly quoted string
literals and SQL identifiers when constructing internal SQL
statements. Achieved by using the helper methods in StringUtil and
IdUtil.

------------------------------------------------------------------------