Log Message:
Updated jasper to 2.0.12.

    Bumped the version number.

    Added some additional checking to prevent a potential integer overflow
    due to conversion in the JPC decoder.

    Added numerous more-detailed error messages for the JPC and JP2
    codecs.
    Added a partial verbose capability for the run_test_1 script.
    Moved a test case from the bad category to the good category, as the
    test case had been miscategorized.

    Added another regression test case.

    Fixed some potential double-free problems in the JPC codec.