0.0.24 (2014-05-01)

   API Changes:
       - Methods RENAMED:
            xarray() -> xarrayref()
            xarrays() -> xarrayrefs()
            xhash() -> xhashref()
            xhashes() -> xhashrefs()
       - xarrayref() no longer returns a list. Functionality replaced
         by the new xlist() method.

   New Features:
      - New methods:
            xval() returns a single scalar
            xlist() returns first row as a list

   Enhancements:
      - None.

   Bug Fixes:
      - None.
0.0.26 (2014-09-10)

    API Changes:
        - None.

    New Features:
        - Accept "column !" in hashref keys to simulate not-equals.

    Enhancements:
        - None.

    Bug Fixes:
        - None.

0.0.24 (2014-08-30)
0.0.28 (2014-09-23)

    API Changes:
       - None.

    New Features:
       - None.

    Enhancements:
       - HASHref columns (for VALUES or SET or WHERE) are now sorted
         so that statements are consistent between runs.

    Bug Fixes:
       - None.