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#          TO-DO List             #
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Required:
  * Fix #{index} references in foreach (2,2,2)...
  * Add <e param=""> and <ne param=""> for nullable equals and not equals (= vs. is conversion)

Nice to Have:

  * Preserve select key id on failed statement (refactor keygenerator interface)
  * Commit required option at statement level
  * http://issues.apache.org/jira/browse/IBATIS-357